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Tobi
Joined: 07 Apr 2009
Posts: 3495
Location: Good Old Germany
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 Posted: Apr 21, 2018 02:38 Post subject: Re: Baryte collection of Niels Brouwer |
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| Wonderful specimens and really good photos, Niels, please more! :-)
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Firmo Espinar
Joined: 05 Apr 2017
Posts: 538
Location: Medellín, Colombia.
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| Posted: Apr 23, 2018 06:49 Post subject: Re: Baryte collection of Niels Brouwer |
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Very nice specimens from San Giovanni Mine, Sardinia / Sardegna, Italy.
Congratulations Niels.
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Niels Brouwer
Joined: 26 Sep 2016
Posts: 54
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| Posted: Jun 01, 2018 15:21 Post subject: Re: Baryte collection of Niels Brouwer |
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| Tobi wrote: | | Wonderful specimens and really good photos, Niels, please more! :-) |
| franjungle wrote: | Very nice specimens from San Giovanni Mine, Sardinia / Sardegna, Italy.
Congratulations Niels. |
Thanks for your comments guys! I'm glad you enjoy them.
Time for a new update, once more from the famous Grube Clara in the Black Forest in Germany. I find it fascinating how many different colours, forms, habits and sizes of baryte crystals have been found there over the years, due to the many successive phases of geological activity at this locality.
| Mineral: | Baryte |
| Locality: | | Clara Mine, Rankach Valley, Oberwolfach, Wolfach, Black Forest, Baden-Württemberg, Germany |  |
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| Dimensions: | 6,5 x 5,5 x 4,0 cm |
| Description: |
| Translucent baryte crystals with a subtle shade of pink, many of which are double terminated. |
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| Viewed: |
10309 Time(s) |
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| Mineral: | Baryte |
| Locality: | | Clara Mine, Rankach Valley, Oberwolfach, Wolfach, Black Forest, Baden-Württemberg, Germany | |
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| Dimensions: | 8,1 x 5,6 x 4,5 cm |
| Description: |
| Rather unusual radiating formation of slender pink 'Meißelspat' baryte crystals, partly covered by a white outer layer. Amongst the radial baryte crystals are some double ended ones that formed in a different orientation. |
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| Viewed: |
10298 Time(s) |
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| Mineral: | Baryte |
| Locality: | | Clara Mine, Rankach Valley, Oberwolfach, Wolfach, Black Forest, Baden-Württemberg, Germany | |
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| Dimensions: | 8,1 x 5,6 x 4,5 cm |
| Description: |
| Close-up of previous image. |
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| Viewed: |
10300 Time(s) |
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| Mineral: | Baryte, Goethite |
| Locality: | | Clara Mine, Rankach Valley, Oberwolfach, Wolfach, Black Forest, Baden-Württemberg, Germany | |
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| Dimensions: | 5,7 x 4 x 3,8 cm |
| Description: |
| Stack of clear parallel blocky baryte crystals, included with intricate 'clouds' of goethite. |
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| Viewed: |
10304 Time(s) |
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| Mineral: | Baryte, Goethite |
| Locality: | | Clara Mine, Rankach Valley, Oberwolfach, Wolfach, Black Forest, Baden-Württemberg, Germany | |
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| Dimensions: | 5,7 x 4 x 3,8 cm |
| Description: |
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| Viewed: |
10316 Time(s) |
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| Mineral: | Baryte |
| Locality: | | Clara Mine, Rankach Valley, Oberwolfach, Wolfach, Black Forest, Baden-Württemberg, Germany | |
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| Dimensions: | 8 x 6 x 3 cm |
| Description: |
| Freestanding baryte crystals up to 6 cm with interesting parallel growth patterns with a nice contrast between the greyish blue centre and orange ends. |
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| Viewed: |
10308 Time(s) |
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| Mineral: | Baryte |
| Locality: | | Clara Mine, Rankach Valley, Oberwolfach, Wolfach, Black Forest, Baden-Württemberg, Germany | |
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| Dimensions: | 7,5 x 4,6 x 4,2 cm |
| Description: |
| Lustrous, transparent baryte grown on a coarse white baryte matrix. Quite a challenge to photograph. |
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| Viewed: |
10306 Time(s) |
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| Mineral: | Baryte, Goethite |
| Locality: | | Clara Mine, Rankach Valley, Oberwolfach, Wolfach, Black Forest, Baden-Württemberg, Germany | |
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| Dimensions: | 4 x 2 x 1 cm |
| Description: |
| Some baryte crystals, heavily included with black and brown goethite. One of the crystals has an interesting tan-coloured termination, somewhat reminiscent of a clenched fist with the index finger pointing upwards. |
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| Viewed: |
10311 Time(s) |
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| Mineral: | Baryte |
| Locality: | | Clara Mine, Rankach Valley, Oberwolfach, Wolfach, Black Forest, Baden-Württemberg, Germany | |
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| Dimensions: | 9,3 x 8 x 2,5 cm |
| Description: |
| Thin plate consisting of honey-coloured baryte crystals. The second photo shows the interesting phantoms and crystal habit in more detail. |
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| Viewed: |
10303 Time(s) |
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| Mineral: | Baryte |
| Locality: | | Clara Mine, Rankach Valley, Oberwolfach, Wolfach, Black Forest, Baden-Württemberg, Germany | |
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| Dimensions: | 9,3 x 8 x 2,5 cm |
| Description: |
| Close-up of the phantoms within the crystals. |
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| Viewed: |
10294 Time(s) |
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| Mineral: | Baryte |
| Locality: | | Clara Mine, Rankach Valley, Oberwolfach, Wolfach, Black Forest, Baden-Württemberg, Germany | |
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| Dimensions: | 6,7 x 4,2 x 2,8 cm |
| Description: |
| Upstanding baryte crystal var. 'Meißelspat' (chisel spar). The front face of the main crystal is covered by a second generation of smaller crystals. |
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| Viewed: |
10291 Time(s) |
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| Mineral: | Baryte, Fluorite, Quartz |
| Locality: | | Clara Mine, Rankach Valley, Oberwolfach, Wolfach, Black Forest, Baden-Württemberg, Germany | |
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| Dimensions: | 7,3 x 6,6 x 4,9 cm |
| Description: |
| Clear quartz and cubic fluorite on a base of tabular white baryte. |
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| Viewed: |
10293 Time(s) |
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| Mineral: | Baryte, Fluorite |
| Locality: | | Clara Mine, Rankach Valley, Oberwolfach, Wolfach, Black Forest, Baden-Württemberg, Germany | |
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| Dimensions: | 11,3 x 6,6 x 5,8 cm |
| Description: |
| Clear cubic fluorite on white tabular baryte, which in turn is covered in a dark layer of goethite. |
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| Viewed: |
10287 Time(s) |
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Tobi
Joined: 07 Apr 2009
Posts: 3495
Location: Good Old Germany
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| Posted: Jun 10, 2018 01:54 Post subject: Re: Baryte collection of Niels Brouwer |
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| Great samples from one of Germany's most famous mines, Niels!
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Niels Brouwer
Joined: 26 Sep 2016
Posts: 54
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| Posted: Oct 03, 2018 16:35 Post subject: Re: Baryte collection of Niels Brouwer |
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Picking up where I left off last time, I have two more baryte specimens from Grube Clara I wanted to share.
| Mineral: | Baryte |
| Locality: | | Clara Mine, Rankach Valley, Oberwolfach, Wolfach, Black Forest, Baden-Württemberg, Germany | |
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| Dimensions: | 14,4 x 12,3 x 10,2 cm |
| Description: |
Grube Clara is not only famous for the remarkable number of different mineral species that have been found over the years, it has also produced an astonishing variety of baryte specimens. This diversity, both in species and baryte habits, can be attributed to three main consecutive phases of hydrothermal activity. The baryte from this first period is known as 'Messerspat', or 'knife spar', and is easily distinguished by the thin white tabular habit. In later hydrothermal phases, this primary baryte partially dissolved and was redeposited as 'Honigspat' and 'Meißelspat' respectively. The former, 'honey spar', is characterised by the yellow colour reminiscent of honey. The latter, 'chisel spar', is usually clear, although it very often displays brown, orange and yellow phantoms and appears in a multitude of different habits.
This specimen shows a relatively rare example in which all three types are present. The white matrix consists of the first phase, showing the tabular habit in the cross section (although no complete crystals are present). This is covered by more blocky yellow baryte from the second phase, that partially shows parallel growth to the first generation. The second baryte layer has been covered by black manganese oxides, before the third generation of baryte grew on top of it all. The third generation features the largest crystals, ranging from clear to orange due to inclusions. This very distinctive habit is sometimes referred to as 'Walmdach'-habit, as they resemble the shape of the roofs of the vernacular Black Forest farm houses. Some empty space can be observed in places between the second and third generations, indicating that some other mineral or pocket clay has been dissolved away. Finally, some of the third generation crystals also show marks where their growth was impeded by a now disappeared mineral. |
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| Viewed: |
9161 Time(s) |
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| Mineral: | Baryte |
| Locality: | | Clara Mine, Rankach Valley, Oberwolfach, Wolfach, Black Forest, Baden-Württemberg, Germany | |
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| Dimensions: | 14,4 x 12,3 x 10,2 cm |
| Description: |
| Cloase-up of the third generation baryte crystals. |
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| Viewed: |
9166 Time(s) |
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| Mineral: | Baryte |
| Locality: | | Clara Mine, Rankach Valley, Oberwolfach, Wolfach, Black Forest, Baden-Württemberg, Germany | |
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| Dimensions: | 14 x 7 x 6 cm |
| Description: |
| Pointed chisel-shaped crystals showing some interesting phantoms. Part of these phantoms is formed by the usual yellow zoning that you see more often in baryte from Grube Clara. However, in this case the crystals partially have inclusions of coarser brown grains, similar to the matrix on which the crystals have grown. |
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| Viewed: |
9162 Time(s) |
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| Mineral: | Baryte |
| Locality: | | Clara Mine, Rankach Valley, Oberwolfach, Wolfach, Black Forest, Baden-Württemberg, Germany | |
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| Dimensions: | 14 x 7 x 6 cm |
| Description: |
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| Viewed: |
9161 Time(s) |
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Niels Brouwer
Joined: 26 Sep 2016
Posts: 54
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| Posted: Oct 03, 2018 17:33 Post subject: Re: Baryte collection of Niels Brouwer |
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Personally, I find that I can appreciate mineral specimens even more when I'm familiar with the surroundings in which they have been found. As I live quite close to the German border here in the Netherlands, I've spent quite a few holidays and business trips all across Germany, and visited a fair number of the famous baryte mines. For me, the often stunning beauty of the surrounding landscapes this country has to offer, combined with the wealth of mining history adds a lot of context and character to a any specimen. I guess that's why German baryte always is always a favourite of mine.
| Mineral: | Baryte |
| Locality: | | Elisabeth Spat vein, Tiefer Gideon adit, Großolbersdorf, Marienberg, Erzgebirgskreis, Saxony/Sachsen, Germany | |
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| Dimensions: | 5,2 x 3,4 x 1,7 cm |
| Description: |
| Doubly terminated baryte crystals to 29 mm, with the colour ranging from a subtle clear blue to a orange-red. |
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| Viewed: |
9152 Time(s) |
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| Mineral: | Baryte, Chalcopyrite |
| Locality: | | Dreislar Mine, Dreislar, Winterberg, Sauerland, North Rhine-Westphalia/Nordrhein-Westfalen, Germany | |
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| Dimensions: | 7,5 x 4 x 2 cm |
| Description: |
| Relatively large, wafer-thin freestanding blade of baryte. Small golden chalcopyrite crystals are scattered across its surface, with a few smaller baryte blades along the edges. Quite an unusual specimen compared with the instantly recognisable specimens that are normally seen from this classic locality. |
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| Viewed: |
9141 Time(s) |
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| Mineral: | Baryte, Fluorite |
| Locality: | | Finstergrund Mine, Wieden (Schwarzwald), Lörrach, Freiburg, Baden-Württemberg, Germany | |
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| Dimensions: | 17,1 x 12,4 x 7,4 cm |
| Description: |
| Large plate of baryte matrix consisting of fine beige blades, hosting a number of yellow cubic fluorite crystals. |
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| Viewed: |
9139 Time(s) |
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| Mineral: | Baryte, Native silver |
| Locality: | | Adit no. 7, Oberpfannenstiel, Lauter-Bernsbach, Erzgebirgskreis, Saxony/Sachsen, Germany | |
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| Dimensions: | 2,8 x 2,3 x 1,8 cm |
| Description: |
| This time the baryte itself isn't necessarily the main attraction, but instead hosts wonderfully intricate dendrites of native silver. |
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| Viewed: |
9162 Time(s) |
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Niels Brouwer
Joined: 26 Sep 2016
Posts: 54
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| Posted: Oct 03, 2018 17:49 Post subject: Re: Baryte collection of Niels Brouwer |
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Continuing the German series with more baryte from a very prolific mining area. The Erzgebirge (Ore Mountains in English), the name says it all. In the context of what I wrote in my previous post, I've never been to this eastern region, so it is still very high on my wish list of places to visit.
| Mineral: | Baryte, Fluorite |
| Locality: | | Uranus Mine, Letzte Hoffnung Stehender vein, Kleinrückerswalde, Annaberg-Buchholz, Annaberg District, Erzgebirgskreis, Saxony/Sachsen, Germany | |
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| Dimensions: | 6,9 x 4,0 x 2,8 cm |
| Description: |
| Two golden yellow baryte crystals on heavily etched fluorite. The sides of the fluorite reveal nice yellow and purple zoning. Green specks of what appears to be weathered chalcopyrite are distributed across the surface of the fluorite, would need analysis to determine the exact species. |
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| Viewed: |
9146 Time(s) |
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| Mineral: | Baryte |
| Locality: | | Frisch Glück adit (Adit 134), Bergmännisch Glück Flacher vein, Frohnau, Annaberg-Buchholz, Annaberg District, Erzgebirgskreis, Saxony/Sachsen, Germany | |
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| Dimensions: | 2,8 x 2,3 x 1,8 cm |
| Description: |
| Clear golden prismatic baryte entirely covering the fluorite matrix. The baryte shows beautiful yellow fluorescence under long wave UV light. |
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| Viewed: |
9147 Time(s) |
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| Mineral: | Baryte, Fluorite |
| Locality: | | Frisch Glück adit (Adit 134), Bergmännisch Glück Flacher vein, Frohnau, Annaberg-Buchholz, Annaberg District, Erzgebirgskreis, Saxony/Sachsen, Germany | |
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| Dimensions: | 5.7 cm x 4.8 cm x 2.3 cm |
| Description: |
| Wonderful combination of yellow prismatic baryte on yellow cubic fluorite with beautiful purple zoning. Small purple fluorite and golden chalcopyrite are scattered across the surface of the fluorite. The baryte shows a nice yellow fluorescence under long wave UV light. |
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| Viewed: |
9145 Time(s) |
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| Mineral: | Baryte, Quartz |
| Locality: | | Pöhla-Tellerhäuser Mine, Pöhla, Schwarzenberg District, Erzgebirgskreis, Saxony/Sachsen, Germany | |
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| Dimensions: | 8,2 x 5,9 x 1,9 cm |
| Description: |
| Remarkably clear golden yellow baryte crystals to 10 mm on a quartz matrix. I find the thin plate of matrix fascinating too, as the epimorphic underside shows the very distinct shape of cubic fluorite. The baryte has grown on both sides of the quartz plate, which must have taken place after the fluorite had been dissolved away. Dark specs of chalcopyrite and a touch of red from a hematite layer adds further contrast to the specimen. |
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| Viewed: |
9150 Time(s) |
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| Mineral: | Baryte, Quartz |
| Locality: | | Pöhla-Tellerhäuser Mine, Pöhla, Schwarzenberg District, Erzgebirgskreis, Saxony/Sachsen, Germany | |
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| Dimensions: | 8,2 x 5,9 x 1,9 cm |
| Description: |
| Reverse side, showing the clear fluorite epimorphs. |
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| Viewed: |
9146 Time(s) |
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| Mineral: | Baryte, Quartz |
| Locality: | | Pöhla-Tellerhäuser Mine, Pöhla, Schwarzenberg District, Erzgebirgskreis, Saxony/Sachsen, Germany | |
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| Dimensions: | 8,2 x 5,9 x 1,9 cm |
| Description: |
| Close-up of the clear golden baryte right on the side of the quartz. |
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| Viewed: |
9158 Time(s) |
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Tobi
Joined: 07 Apr 2009
Posts: 3495
Location: Good Old Germany
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| Posted: Oct 07, 2018 04:07 Post subject: Re: Baryte collection of Niels Brouwer |
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A wonderful collection of German barite classics. As a German collector, minerals from Germany are among my favourites, also, barite is becoming more and more a mineral that I like. So I really enjoy your gallery, the more because your photo quality is superb!
Sehr schön, weiter so :-)
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Niels Brouwer
Joined: 26 Sep 2016
Posts: 54
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| Posted: Oct 12, 2018 09:04 Post subject: Re: Baryte collection of Niels Brouwer |
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| Tobi wrote: | A wonderful collection of German barite classics. As a German collector, minerals from Germany are among my favourites, also, barite is becoming more and more a mineral that I like. So I really enjoy your gallery, the more because your photo quality is superb!
Sehr schön, weiter so :-) |
Thanks again for your comments, Tobi. I hope you won't be too disappointed if I switch to posting different countries every now and then. ;)
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Niels Brouwer
Joined: 26 Sep 2016
Posts: 54
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| Posted: Dec 03, 2018 10:08 Post subject: Re: Baryte collection of Niels Brouwer |
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A couple of Italian barytes from the wide range of variations that Sardinia has produced over the years.
| Mineral: | Baryte |
| Locality: | | Monte Onixeddu Mine, Gonnesa, Sud Sardegna Province, Sardinia/Sardegna, Italy | |
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| Dimensions: | 9,6 x 8,9 x 6,0 cm |
| Description: |
| Large cluster of lustrous, clear to honey-coloured baryte crystals. |
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| Viewed: |
8703 Time(s) |
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| Mineral: | Baryte |
| Locality: | | San Giovanni Mine, Punta della Torre, Iglesias, Sud Sardegna Province, Sardinia/Sardegna, Italy | |
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| Dimensions: | 10,9 x 9,0 x 5,2 cm |
| Description: |
| During mining works in the San Giovanni Mine, they came across a vast cave system with walls covered in pointy brown baryte crystals. Only a few specimens ever came out due to protection of the cave soon after discovery. |
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| Viewed: |
8694 Time(s) |
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| Mineral: | Baryte |
| Locality: | | San Giovanni Mine, Punta della Torre, Iglesias, Sud Sardegna Province, Sardinia/Sardegna, Italy | |
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| Description: |
| Close-up of the same specimen, showing the layer of minute baryte blades that grew as a second generation on the sides of the larger crystals. |
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| Viewed: |
8688 Time(s) |
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Niels Brouwer
Joined: 26 Sep 2016
Posts: 54
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| Posted: Dec 06, 2018 06:53 Post subject: Re: Baryte collection of Niels Brouwer |
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A couple of specimens from Romania, the country which got me started with collecting baryte in the first place.
| Mineral: | Baryte, Orpiment |
| Locality: | | Baia Sprie, Maramures, Romania | |
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| Dimensions: | 8,5 x 6,6 x 5,3 cm |
| Description: |
| Intergrown, steely blue to slightly purple, tabular baryte with distinct yellow zoning due to inclusions of orpiment. |
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| Viewed: |
8599 Time(s) |
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| Mineral: | Baryte, Orpiment |
| Locality: | | Baia Sprie, Maramures, Romania | |
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| Dimensions: | 8,5 x 6,6 x 5,3 cm |
| Description: |
| Close-up of the largest crystal. |
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| Viewed: |
8594 Time(s) |
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| Mineral: | Baryte |
| Locality: | | Cavnic mining area, Cavnic, Maramures, Romania | |
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| Dimensions: | 9,7 x 8,0 x 3,3 cm |
| Description: |
| Sharp tabular baryte crystals up to 2 cm with a transparent yellow colour. The thin plate consists completely of baryte, with a higher ridge making it a more three-dimensional specimen. |
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| Viewed: |
8598 Time(s) |
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| Locality: | | Baia Sprie, Maramures, Romania | |
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| Dimensions: | 10,8 x 7,8 x 3,7 cm |
| Description: |
| Rosettes of very thin lustrous orange baryte, grown along the edges of the darker matrix. |
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| Viewed: |
8596 Time(s) |
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Niels Brouwer
Joined: 26 Sep 2016
Posts: 54
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| Posted: Dec 06, 2018 07:19 Post subject: Re: Baryte collection of Niels Brouwer |
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Next up, a few from the classic mining regions of the UK.
| Mineral: | Baryte |
| Locality: | | Mowbray Mine, Frizington, West Cumberland Iron Field, former Cumberland, Cumbria, England / United Kingdom | |
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| Dimensions: | 13,4 x 8,1 x 5,5 cm |
| Description: |
| Large chocolate brown intergrown baryte crystals with slightly lighter coloured, complex terminations. |
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| Viewed: |
8588 Time(s) |
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| Mineral: | Baryte |
| Locality: | | Dufton Fell Mine, Dufton, Eden District, former Cumberland, Cumbria, England / United Kingdom | |
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| Dimensions: | 11,9 x 8,5 x 8,3 cm |
| Description: |
| Large clear tabular baryte crystals to 55 mm lining the inside of a cavity. The mine originally operated as a lead mine, as so many others in the region, but it was one of the first to switch to mining baryte instead. Specimen dates back to before the first world war. |
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| Viewed: |
8587 Time(s) |
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| Mineral: | Baryte |
| Locality: | | Dufton Fell Mine, Dufton, Eden District, former Cumberland, Cumbria, England / United Kingdom | |
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| Dimensions: | 11,9 x 8,5 x 8,3 cm |
| Description: |
| Close-up of the clear baryte crystals. |
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| Viewed: |
8585 Time(s) |
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| Mineral: | Baryte, Hematite |
| Locality: | | Gutterby Pit, Cleator Moor, Copeland, West Cumberland Iron Field, former Cumberland, Cumbria, England / United Kingdom | |
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| Dimensions: | 7 x 3,5 x 2,5 cm |
| Description: |
| Parallel white tabular baryte crystals with contrasting pink colours due to inclusions and surface coating of hematite. |
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| Viewed: |
8602 Time(s) |
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| Mineral: | Baryte, Calcite |
| Locality: | | Admiralty Quarry, Isle of Portland, Portland, Weymouth and Portland District, Dorset, South West Region, England / United Kingdom | |
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| Dimensions: | 5 x 3,5 x 2 cm |
| Description: |
| In visible light, the chocolate brown baryte contrasts nicely with the white calcite matrix... |
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| Viewed: |
8593 Time(s) |
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| Mineral: | Baryte, Calcite |
| Locality: | | Admiralty Quarry, Isle of Portland, Portland, Weymouth and Portland District, Dorset, South West Region, England / United Kingdom | |
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| Dimensions: | 5 x 3,5 x 2 cm |
| Description: |
| ... whereas under UV light, the baryte sheaves display a beautiful dark yellow fluorescence and phosphorescence. |
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| Viewed: |
8593 Time(s) |
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| Mineral: | Baryte, Dolomite |
| Locality: | | Frizington, West Cumberland Iron Field, former Cumberland, Cumbria, England / United Kingdom | |
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| Dimensions: | 7,9 x 4,1 x 1,7 cm |
| Description: |
| Classic light blue, lustrous, complex cockscomb crystal of baryte with minor beige dolomite where the crystal was attached to the matrix. A band of slightly more yellow zoning runs along the middle of the crystal. |
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| Viewed: |
8586 Time(s) |
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| Mineral: | Baryte, Calcite |
| Locality: | | Machen Quarry, Machen, Caerphilly, Wales / United Kingdom | |
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| Dimensions: | 8,2 x 5,5 x 4,0 cm |
| Description: |
| Bright white baryte with orange coating, dusted from one side with bright, nicely contrasting white calcite. |
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| Viewed: |
8585 Time(s) |
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Niels Brouwer
Joined: 26 Sep 2016
Posts: 54
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| Posted: Dec 06, 2018 07:38 Post subject: Re: Baryte collection of Niels Brouwer |
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Another couple of German barytes. The vast amount of variation between the different localities in Germany, or even within a single mine, never ceases to amaze me.
| Mineral: | Baryte, Fluorite |
| Locality: | | Clara Mine, Rankach Valley, Oberwolfach, Wolfach, Black Forest, Baden-Württemberg, Germany | |
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| Dimensions: | 11,4 x 9,9 x 6,2 cm |
| Description: |
| Cluster of large clear blocky baryte crystals. These crystals formed parallel over an earlier generation of baryte. In the matrix, several clear blue cubic fluorite crystals are enclosed by baryte. |
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| Viewed: |
8581 Time(s) |
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| Mineral: | Baryte |
| Locality: | | Clara Mine, Rankach Valley, Oberwolfach, Wolfach, Black Forest, Baden-Württemberg, Germany | |
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| Dimensions: | 10,4 x 8,3 x 6,6 cm |
| Description: |
| Cluster of freestanding golden yellow pointed baryte to 5 cm. The colour gives rise to the nickname 'Honigspat' or 'honeyspar', whereas the crystal shape to 'Meißelspat' or 'chisel spar'. On a matrix of an earlier generation of baryte. |
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| Viewed: |
8588 Time(s) |
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| Mineral: | Baryte |
| Locality: | | Clara Mine, Rankach Valley, Oberwolfach, Wolfach, Black Forest, Baden-Württemberg, Germany | |
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| Dimensions: | 10,4 x 8,3 x 6,6 cm |
| Description: |
| Close-up of the freestanding crystals. |
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| Viewed: |
8581 Time(s) |
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| Mineral: | Baryte |
| Locality: | | Winterberg Quarry, Iberg, Bad Grund, Göttingen District, Harz, Lower Saxony/Niedersachsen, Germany | |
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| Dimensions: | 6,8 cm x 6,5 cm x 6,4 cm |
| Description: |
| Rounded groups of lustrous elongated tabular baryte crystals. The outer layer of the baryte is clear, whereas the core is opaque. Brown goethite gives a nice contrast. |
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| Viewed: |
8585 Time(s) |
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| Mineral: | Baryte, Fluorite |
| Locality: | | Pöhla-Tellerhäuser Mine, Pöhla, Schwarzenberg District, Erzgebirgskreis, Saxony/Sachsen, Germany | |
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| Dimensions: | 18,3 x 11,3 x 8,3 cm |
| Description: |
| Large example of golden baryte on green fluorite matrix from this classic German locality. When these barytes were found in the mine, a specialist team would extract them. At the time, most of these were sold in West-Germany in order to bring back western currency to the DDR, although a fair number found their way into the personal collections of the miners. |
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| Viewed: |
8583 Time(s) |
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Tobi
Joined: 07 Apr 2009
Posts: 3495
Location: Good Old Germany
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| Posted: Dec 06, 2018 13:50 Post subject: Re: Baryte collection of Niels Brouwer |
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Thank you for those impressions, Niels, your specimens are simply great and your photos are of the finest quality! And that 18 cm Pöhla specimen ... incredibly beautiful, a true museum piece!
Please more :-)
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Niels Brouwer
Joined: 26 Sep 2016
Posts: 54
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| Posted: Dec 07, 2018 18:31 Post subject: Re: Baryte collection of Niels Brouwer |
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| Tobi wrote: | Thank you for those impressions, Niels, your specimens are simply great and your photos are of the finest quality! And that 18 cm Pöhla specimen ... incredibly beautiful, a true museum piece!
Please more :-) |
Thanks again Tobi, the one from Pöhla certainly takes pride of place right in the centre.
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Niels Brouwer
Joined: 26 Sep 2016
Posts: 54
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| Posted: Dec 12, 2018 07:31 Post subject: Re: Baryte collection of Niels Brouwer |
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I finally got around to photographing some of the new additions of the past year, so here's a selection of them.
| Mineral: | Baryte |
| Locality: | | Teplice (Teplitz), Teplice District, Ústí Region, Bohemia, Czech Republic | |
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| Dimensions: | 4,0 x 3,4 x 2,7 cm |
| Description: |
| Several transparent golden yellow baryte crystals with darker phantoms. Accompanied by an old Dr. A. Krantz label, dated between 1850 when the company moved to Bonn, and 1888 when Friedrich Krantz took over the business from his uncle August Krantz. One of the crystals also has a small handwritten label glued to the back. Dimensions given for the largest crystal. |
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| Viewed: |
8245 Time(s) |
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| Mineral: | Baryte, Dolomite, Hematite |
| Locality: | | Frizington, West Cumberland Iron Field, former Cumberland, Cumbria, England / United Kingdom | |
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| Dimensions: | 7,7 x 5,9 x 4,3 cm |
| Description: |
| Classic light blue baryte crystals, partially red due to inclusions of hematite, on tan dolomite matrix. Accompanied by an old German label from the 'Bayerisches Petrefacten und Mineralien Comptoir' by Friedrich Kohl, dated to the 1890s. |
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| Viewed: |
8238 Time(s) |
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| Mineral: | Baryte, Dolomite, Hematite |
| Locality: | | Frizington, West Cumberland Iron Field, former Cumberland, Cumbria, England / United Kingdom | |
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| Dimensions: | 7,7 x 5,9 x 4,3 cm |
| Description: |
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| Viewed: |
8245 Time(s) |
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| Mineral: | Baryte, Dolomite, Hematite |
| Locality: | | Frizington, West Cumberland Iron Field, former Cumberland, Cumbria, England / United Kingdom | |
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| Description: |
The label from Friedrich Kohl's 'Bayerisches Petrefacten und Mineralien Comptoir' (“Bavarian Fossil and Mineral Company”).
More info: https://mineralogicalrecord.com/labels.asp?colid=432 |
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| Viewed: |
8241 Time(s) |
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| Mineral: | Baryte, Fluorite |
| Locality: | | Clara Mine, Rankach Valley, Oberwolfach, Wolfach, Black Forest, Baden-Württemberg, Germany | |
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| Dimensions: | 6,0 x 5,2 x 4,4 cm |
| Description: |
| Cluster of pink tabular baryte surrounding a matrix with crystal clear, slightly blue cubic fluorite. |
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| Viewed: |
8244 Time(s) |
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Niels Brouwer
Joined: 26 Sep 2016
Posts: 54
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| Posted: Sep 28, 2020 18:01 Post subject: Re: Baryte collection of Niels Brouwer |
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It has been a while since my last post here, so I thought it's about time to share a few pieces that have found their way into my collection since then. Those of you who are also active on Instagram might be interested to follow me on there too, simply search for @mineralphotography.
For a while now I have started using a lot of stereo images, as those allow for a fabulous three-dimensional view of the specimens that normal 'flat' images don't provide. The specimens will look a lot more lively, so definitely give it a try to see if this viewing technique works for you!
Here's how these stereograms work to view the specimen in 3D:
Sit straight in front of the screen and look at the image increasingly more cross-eyed. When you do so, the left and right images will gradually start to overlap more and more in the centre. Once you find the sweet spot in which both images exactly overlap, the image will suddenly appear to be in 3D. You can also use the two dots at the top to get the two images to align.
| Mineral: | Baryte, Fluorite |
| Locality: | | Berbes mining area, Berbes, Ribadesella, Comarca Oriente, Asturias, Principality of Asturias, Spain | |
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| Dimensions: | 11,0 x 9,6 cm |
| Description: |
| Cubic fluorite crystals with wonderful purple zoning, on white blades of baryte. I personally just love the balance between both species! |
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| Viewed: |
1684 Time(s) |
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| Mineral: | Baryte, Fluorite |
| Locality: | | Berbes mining area, Berbes, Ribadesella, Comarca Oriente, Asturias, Principality of Asturias, Spain | |
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| Dimensions: | 11,0 x 9,6 cm |
| Description: |
| The specimen in stereo; see above how these work. |
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| Viewed: |
1676 Time(s) |
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| Mineral: | Baryte, Dolomite |
| Locality: | | Feitais deposit, Aljustrel, Beja District, Baixo Alentejo, Alentejo, Portugal | |
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| Dimensions: | 8,4 x 7,0 cm |
| Description: |
| These two Portuguese (!) baryte specimens were instant favourites in my collection. It has really nice colour zoning, stunning lustre, a really intriguing dolomite coating on the back, and from a locality I had never even heard of before! |
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| Viewed: |
1688 Time(s) |
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| Mineral: | Baryte, Dolomite |
| Locality: | | Feitais deposit, Aljustrel, Beja District, Baixo Alentejo, Alentejo, Portugal | |
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| Dimensions: | 5,4 x 4,5 cm |
| Description: |
| In this slightly smaller specimen, the tabular baryte crystal is outlined even more prominently by the dolomite coating around the edges. |
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| Viewed: |
1676 Time(s) |
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| Mineral: | Baryte, Fluorite |
| Locality: | | Sauberg Mine, Ehrenfriedersdorf, Erzgebirgskreis, Saxony/Sachsen, Germany | |
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| Dimensions: | 2,5 x 2,1 cm |
| Description: |
| A cute thumbnail specimen with colourful cubic fluorite on either side of a spherical cluster of marcasite-included baryte. |
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| Viewed: |
1678 Time(s) |
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| Mineral: | Baryte, Malachite, Hematite, Gypsum |
| Locality: | | Paleokamariza Mines, Lavrion Mining District, Attikí (Attica) Prefecture, Greece | |
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| Dimensions: | 8,0 x 4,7 cm |
| Description: |
| Light green tufts of acicular malachite and white gypsum on a thin plate of hematite-included brick-red baryte; just a wonderfully colourful combination! |
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| Viewed: |
1678 Time(s) |
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| Mineral: | Baryte, Hematite |
| Locality: | | Calcite Quarry, Holzen, Arnsberg, Sauerland, North Rhine-Westphalia/Nordrhein-Westfalen, Germany | |
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| Dimensions: | 3,0 x 2,4 |
| Description: |
| Baryte with wonderful pink zoning, very typical for this find. I trimmed this down from a much larger specimen that was almost completely damaged, except for this very sharp crystal. |
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| Viewed: |
1679 Time(s) |
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| Mineral: | Baryte, Dolomite, Hematite |
| Locality: | | Parkside Mines, Frizington, West Cumberland Iron Field, former Cumberland, Cumbria, England / United Kingdom | |
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| Dimensions: | 7,4 x 2,3 cm |
| Description: |
| Old baryte specimen from one of the most classic localities in the UK, most likely mined around a century ago. On one side it has inclusions of hematite, giving it a very nice colour contrast. |
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| Viewed: |
1686 Time(s) |
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| Mineral: | Baryte, Dolomite, Hematite |
| Locality: | | Parkside Mines, Frizington, West Cumberland Iron Field, former Cumberland, Cumbria, England / United Kingdom | |
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| Dimensions: | 7,4 x 2,3 cm |
| Description: |
| Reverse side, showing a line of dolomite running along the middle of the baryte. |
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| Viewed: |
1680 Time(s) |
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| Mineral: | Baryte, Sulphur |
| Locality: | | Machów Mine, Tarnobrzeg, Subcarpathian Voivodeship, Poland | |
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| Dimensions: | 6,9 x 5,3 cm |
| Description: |
| Classic combo of sulphur crystals on beige baryte; another specimen that lends itself very well to stereo photography due to its three-dimensional nature. |
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| Viewed: |
1678 Time(s) |
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| Mineral: | Baryte, Siderite, Calcite, Hematite |
| Locality: | | Brosso Mine, Cálea, Léssolo, Canavese District, Metropolitan City of Turin Province, Piedmont (Piemonte), Italy | |
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| Dimensions: | F.o.v. 2 cm |
| Description: |
| Beautifully zoned baryte (red core due to hematite inclusions, outer edge bright white) with transparent scalenohedral calcite on brown siderite matrix. From the 497m Gierinera level, Fortune sector. Field of view around 20 mm, total specimen 8.5 cm across. |
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| Viewed: |
1683 Time(s) |
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Tobi
Joined: 07 Apr 2009
Posts: 3495
Location: Good Old Germany
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| Posted: Sep 29, 2020 03:18 Post subject: Re: Baryte collection of Niels Brouwer |
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| Again some beautiful specimens and photos, Niels! I really like the 3D stereo photos, great idea!
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Niels Brouwer
Joined: 26 Sep 2016
Posts: 54
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| Posted: Sep 29, 2020 12:37 Post subject: Re: Baryte collection of Niels Brouwer |
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| Tobi wrote: | | Again some beautiful specimens and photos, Niels! I really like the 3D stereo photos, great idea! |
Thanks again Tobi! I'm happy those stereo images worked for you, it's such a great way to view the specimens!
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Tobi
Joined: 07 Apr 2009
Posts: 3495
Location: Good Old Germany
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| Posted: Oct 01, 2020 02:45 Post subject: Re: Baryte collection of Niels Brouwer |
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| Niels Brouwer wrote: | | Tobi wrote: | | Again some beautiful specimens and photos, Niels! I really like the 3D stereo photos, great idea! |
Thanks again Tobi! I'm happy those stereo images worked for you, it's such a great way to view the specimens! |
It definitely is! Like I wrote in the fluorite topic:
| Sante Celiberti wrote: | | Also, being a lover of 3D images, I am so trained to look at them that it takes me less than a second to focus them. |
Like Sante, I'm also able to see the 3D effect immediately and thus I love those stereo images!!! Great work, I hope to see more :-)
So again, please more of that awesome work!
Regards
Tobi
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