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A mineralogical trip through Germany / Sachsen - Saxony
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Jesse Fisher




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PostPosted: May 05, 2016 16:19    Post subject: Re: A mineralogical trip through Germany / Sachsen - Saxony  

"Black" fluorite from Frohnau. I have seen some of these specimens labeled as coming from "Zehnthausend Ritter Mine." This one was labeled "Bergmannisch Gluck Flacher, Wismut 29b Shaft." Are these the same location?


Annaberg-9473.JPG
 Mineral: Fluorite
 Locality:
Bergmännisch Glück Flacher vein, Wismut Shaft 29b, Frohnau, Annaberg-Buchholz, Annaberg District, Erzgebirge, Saxony/Sachsen, Germany
 Dimensions: 10x7x6 cm overall size
 Description:
 Viewed:  3908 Time(s)

Annaberg-9473.JPG


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Andreas Gerstenberg




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PostPosted: May 06, 2016 03:26    Post subject: Re: A mineralogical trip through Germany / Sachsen - Saxony  

Hi Jesse,

the old name for the mine was Zehntausend Ritter, the WISMUT company in the 40s and 50s gave numbers to their shafts so 29b is the "WISMUT expression" for the Zehntausend Riitter mine. Bergmännisch Glück Flacher is the name of the vein these fluorites were found in. But you even see Bergmännisch Glück as the mine´s name (and i think there was a mine of that name in Frohnau). However, there were quite a number of mines in that area in the old days. All the colourful fluorites that come out from Frohnau in these days are from that very region - but sometimes it´s hard to say from which place in particular.

Cheers
Andreas
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Andreas Gerstenberg




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PostPosted: Jun 01, 2016 03:06    Post subject: Re: A mineralogical trip through Germany / Sachsen - Saxony  

Three Saxonian classics recently added to my collection:


Rubellit (Wolkenburg).jpg
 Mineral: Elbaite (variety rubelite), Orthoclase
 Locality:
Wolkenburg, Limbach-Oberfrohna, Zwickau, Saxony/Sachsen, Germany
 Dimensions: 3,8 x 3,2 cm
 Description:
 Viewed:  3694 Time(s)

Rubellit (Wolkenburg).jpg



Calcit (Annaberg).jpg
 Mineral: Calcite, Dolomite, Fluorite
 Locality:
Himmlisch Heer Mine, Cunersdorf, Annaberg-Buchholz, Annaberg District, Erzgebirge, Saxony/Sachsen, Germany
 Dimensions: 11 x 8 cm
 Description:
 Viewed:  3696 Time(s)

Calcit (Annaberg).jpg



Bergkristall (Steinigtwolmsdorf).jpg
 Mineral: Quartz
 Locality:
Goldbergwiesen, Steinigtwolmsdorf, Bautzen (Oberlausitz), Saxony/Sachsen, Germany
 Dimensions: 10 x 7 cm
 Description:
 Viewed:  3696 Time(s)

Bergkristall (Steinigtwolmsdorf).jpg


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Tobi




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PostPosted: Aug 10, 2016 10:20    Post subject: Re: A mineralogical trip through Germany / Sachsen - Saxony  

Once again a fluorite from Saxony. This specimen once was in my collection, somehow I forgot to put it in this thread:


abrahamFLUO.jpg
 Mineral: Fluorite
 Locality:
Vater Abraham Mine, Lauta, Marienberg District, Erzgebirge, Saxony/Sachsen, Germany
 Dimensions: Specimen size 6 cm
 Description:
 Viewed:  3453 Time(s)

abrahamFLUO.jpg


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Tobi




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PostPosted: Aug 17, 2016 11:43    Post subject: Re: A mineralogical trip through Germany / Sachsen - Saxony  

Rather large and fine specimen of Germany's most prominent fluorapatite:


IMG_4023.JPG
 Mineral: Fluorapatite
 Locality:
Greifensteine, Ehrenfriedersdorf, Erzgebirge, Saxony/Sachsen, Germany
 Dimensions: Specimen size 12-13 cm
 Description:
Collection: Mineralogical Museum Marburg (my photo)
 Viewed:  3365 Time(s)

IMG_4023.JPG


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Jesse Fisher




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PostPosted: Jan 04, 2017 12:49    Post subject: Re: A mineralogical trip through Germany / Sachsen - Saxony  

Time for another fluorite from Saxony. An old specimen from Annaberg, likely 19th century, acquired at the recent Munich show. The specimen was featured in the Extra Lapis n. 4, "Fluorit" issue.


F409r.JPG
 Mineral: Fluorite, Barite
 Locality:
Annaberg District, Erzgebirge, Saxony/Sachsen, Germany
 Dimensions: 7x6x4 cm overall size
 Description:
 Viewed:  2913 Time(s)

F409r.JPG



F409-Lr.jpg
 Locality:
Annaberg District, Erzgebirge, Saxony/Sachsen, Germany
 Description:
collection of old labels that came with the fluorite.
 Viewed:  2912 Time(s)

F409-Lr.jpg


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Andreas Gerstenberg




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PostPosted: Jan 18, 2017 12:41    Post subject: Re: A mineralogical trip through Germany / Sachsen - Saxony  

Rare piece indeed. Old, labelled Annaberg specimens don´t occur that often.


Achat (Wiederau).jpg
 Mineral: Quartz (variety agate)
 Locality:
Wiederau, Königshain-Wiederau, Mittelsachsen, Baden-Württemberg, Germany
 Dimensions: 3 x 3 cm
 Description:
A small polished sample from one of the most famous German agate localities. The occurence was found in 1716, most of the agates appeared in red colour with a special zoning. In mid-18th Century the Wiederau agates were often mentioned as to be the best carnelian agates in the world (together with those from "the Orient").
 Viewed:  2767 Time(s)

Achat (Wiederau).jpg


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Jesse Fisher




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PostPosted: Feb 24, 2017 11:25    Post subject: Re: A mineralogical trip through Germany / Sachsen - Saxony  

Another recently acquired fluorite from Saxony. Associated minerals are quartz, barite and dolomite. The specimen came with an old hand-written label that reads "Flussspat, Freiberg in Sachsen." It looks very much like some specimens I have seen from Halsbrucke, but it came with no exact location information.


Saxony-9657r.JPG
 Mineral: Fluorite, Quartz, Barite, Dolomite
 Locality:
Freiberg District, Erzgebirge, Saxony/Sachsen, Germany
 Dimensions: 11x7x3 cm overall size
 Description:
 Viewed:  2547 Time(s)

Saxony-9657r.JPG


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Tobi




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PostPosted: Feb 24, 2017 13:40    Post subject: Re: A mineralogical trip through Germany / Sachsen - Saxony  

Jesse Fisher wrote:
Another recently acquired fluorite from Saxony. Associated minerals are quartz, barite and dolomite. The specimen came with an old hand-written label that reads "Flussspat, Freiberg in Sachsen." It looks very much like some specimens I have seen from Halsbrucke, but it came with no exact location information.
Hi Jesse, a wonderful German fluorite specimen. Hard to say what mine it could be from. As you said, Halsbrücke (Beihilfe Mine) could be possible, another possibility would be Segen Gottes Mine near Gersdorf which is also famous for fine yellow fluorites associated with barite, calcite or sulfide minerals ...

Tobi
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Jesse Fisher




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PostPosted: Feb 24, 2017 13:52    Post subject: Re: A mineralogical trip through Germany / Sachsen - Saxony  

Hello Tobi, Thanks for the information. There is a small amount of what looks like fine grained galena in the quartz matrix, but no other sulfides. The back of the specimen is covered with small white sheaf-like crystal clusters of barite. I assume the specimen is an old one based on the old label. How old were either of these mines?
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Tobi




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PostPosted: Feb 24, 2017 14:13    Post subject: Re: A mineralogical trip through Germany / Sachsen - Saxony  

Galena occured in both of these mines, so I don't know if this helps. The Grube Behilfe area was mined since 1600 and the mine closed in 1969, Grube Segen Gottes and its surroundings are assumed to be mined since the middle-ages, the mine was closed in 1885. I fear these information will also not be very helpful :-(
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Jesse Fisher




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PostPosted: Feb 24, 2017 14:43    Post subject: Re: A mineralogical trip through Germany / Sachsen - Saxony  

This is the same problem with old English fluorite specimens, sometimes it is impossible to say exactly where they came from!
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Andreas Gerstenberg




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PostPosted: Feb 25, 2017 14:25    Post subject: Re: A mineralogical trip through Germany / Sachsen - Saxony  

Hi Jesse,

although the Beihilfe mine is very old you won´t see any specimens dating before 1945. I think that your fluorite came from the Churprinz mine near Großschirma (also in the Halsbrücke part of the Freiberg mining district). The dolomite in the paragenesis speaks for Halsbrücke. Gersdorf produced many specimens with yellow cubes but i´ve never seen a single piece with dolomite crystals on.

Best regards
Andreas
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Thomas Uhlig




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PostPosted: Feb 26, 2017 06:40    Post subject: Re: A mineralogical trip through Germany / Sachsen - Saxony  

I agree with Andreas. The dolomite in paragenesis with yellow Fluorite is a characteristic mineral association for the Halsbrücker Spat (vein).

Below is an example for an old Segen Gottes Mine Fluorite with crystals up to 7 cm associated with Barite and Chalcopyrite and some minor Calcite.

Another typical paragenesis for Segen Gottes Mine's Fluorites are small clear isolated Quartz crystals sitting on the yellow to orange Fluorite.



F2d_p1.jpg
 Mineral: Fluorite
 Locality:
Segen Gottes Mine, Gersdorf, Roßwein, Freiberg District, Erzgebirge, Saxony/Sachsen, Germany
 Dimensions: 25 cm x 20 cm
 Description:
 Viewed:  2350 Time(s)

F2d_p1.jpg



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Jesse Fisher




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PostPosted: Feb 27, 2017 11:52    Post subject: Re: A mineralogical trip through Germany / Sachsen - Saxony  

The specimen definitely has what appears to be dolomite partially coating some of the fluorite crystals.


Saxony-9658r.JPG
 Mineral: Fluorite, Quartz, Dolomite
 Locality:
Freiberg District, Erzgebirge, Saxony/Sachsen, Germany
 Dimensions: FOV approximately 3 cm
 Description:
 Viewed:  2267 Time(s)

Saxony-9658r.JPG


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PostPosted: Apr 08, 2017 13:10    Post subject: Re: A mineralogical trip through Germany / Sachsen - Saxony  

One of the most famous stuff from Saxony besides fluorite - silver ores:


IMG_0370.JPG
 Mineral: Acanthite
 Locality:
Freiberg District, Erzgebirge, Saxony/Sachsen, Germany
 Dimensions: Specimen size ~ 6 cm
 Description:
Collection Mineralogical Museum Marburg (my photo)
 Viewed:  1757 Time(s)

IMG_0370.JPG


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Don Lum




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PostPosted: Apr 08, 2017 13:18    Post subject: Re: A mineralogical trip through Germany / Sachsen - Saxony  

Fluorite from the Bergmännisch Glück Flacher vein


IMG_7116.JPG
 Mineral: Fluorite, Chalcopyrite
 Locality:
Bergmännisch Glück Flacher vein, Wismut Shaft 29b, Frohnau, Annaberg-Buchholz, Annaberg District, Erzgebirge, Saxony/Sachsen, Germany
 Dimensions: 40mm x 35mm x 40mm
 Description:
 Viewed:  1747 Time(s)

IMG_7116.JPG



P4070542.JPG
 Mineral: Fluorite, Chalcopyrite
 Locality:
Bergmännisch Glück Flacher vein, Wismut Shaft 29b, Frohnau, Annaberg-Buchholz, Annaberg District, Erzgebirge, Saxony/Sachsen, Germany
 Dimensions: 40mm x 35mm x 40mm
 Description:
 Viewed:  1747 Time(s)

P4070542.JPG



P4070534.JPG
 Mineral: Fluorite, Chalcopyrite
 Locality:
Bergmännisch Glück Flacher vein, Wismut Shaft 29b, Frohnau, Annaberg-Buchholz, Annaberg District, Erzgebirge, Saxony/Sachsen, Germany
 Dimensions: 40mm x 35mm x 40mm
 Description:
 Viewed:  1747 Time(s)

P4070534.JPG



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Robert Seitz




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PostPosted: Apr 09, 2017 15:27    Post subject: Re: A mineralogical trip through Germany / Sachsen - Saxony  

This map of Freiberg Region from circa 1905 is interesting for showing extensive locations of potential ore / mineral-bearing formations. It was published in Beck, R., The Nature of Ore Deposits, Translated and Revised by W.H. Mudd, Eng. Min. J., 1905. Color key is on the map.


IMG_2217.JPG
 Description:
 Viewed:  1665 Time(s)

IMG_2217.JPG



IMG_2233.JPG
 Description:
 Viewed:  1659 Time(s)

IMG_2233.JPG



IMG_2235.JPG
 Description:
 Viewed:  1661 Time(s)

IMG_2235.JPG


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Andreas Gerstenberg




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PostPosted: Apr 13, 2017 13:05    Post subject: Re: A mineralogical trip through Germany / Sachsen - Saxony  

Ah, one of the Frohnau fluorites that made it to the US.
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Jesse Fisher




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PostPosted: Apr 14, 2017 12:31    Post subject: Re: A mineralogical trip through Germany / Sachsen - Saxony  

Another emigre:


Annaberg-F404--9468.JPG
 Mineral: Fluorite
 Locality:
Bergmännisch Glück Flacher vein, Wismut Shaft 29b, Frohnau, Annaberg-Buchholz, Annaberg District, Erzgebirge, Saxony/Sachsen, Germany
 Dimensions: 6x3x2 cm overall size
 Description:
 Viewed:  1462 Time(s)

Annaberg-F404--9468.JPG


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