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Jesse Fisher
Joined: 18 Mar 2009
Posts: 629
Location: San Francisco
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Posted: May 05, 2016 16:19 Post subject: Re: A mineralogical trip through Germany / Sachsen - Saxony |
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"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?
Mineral: | Fluorite |
Locality: | Malwine Mine, Bergmännisch Glück Flacher vein, Wismut shaft 29b, Frohnau, Annaberg-Buchholz, Annaberg District, Erzgebirgskreis, Saxony/Sachsen, Germany | |
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Dimensions: | 10x7x6 cm overall size |
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Andreas Gerstenberg
Joined: 04 Mar 2010
Posts: 336
Location: Chemnitz
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Posted: May 06, 2016 03:26 Post subject: Re: A mineralogical trip through Germany / Sachsen - Saxony |
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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
Joined: 04 Mar 2010
Posts: 336
Location: Chemnitz
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Posted: Jun 01, 2016 03:06 Post subject: Re: A mineralogical trip through Germany / Sachsen - Saxony |
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Three Saxonian classics recently added to my collection:
Mineral: | Elbaite (variety rubelite), Orthoclase |
Locality: | Wolkenburg, Limbach-Oberfrohna, Zwickau, Saxony/Sachsen, Germany | |
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Dimensions: | 3,8 x 3,2 cm |
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Mineral: | Calcite, Dolomite, Fluorite |
Locality: | Himmlisch Heer Mine, Cunersdorf, Annaberg-Buchholz, Annaberg District, Erzgebirgskreis, Saxony/Sachsen, Germany | |
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Dimensions: | 11 x 8 cm |
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Mineral: | Quartz |
Locality: | Goldbergwiesen, Steinigtwolmsdorf, Bautzen (Oberlausitz), Saxony/Sachsen, Germany | |
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Dimensions: | 10 x 7 cm |
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Tobi
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Joined: 07 Apr 2009
Posts: 4112
Location: Germany
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Posted: Aug 10, 2016 10:20 Post subject: Re: A mineralogical trip through Germany / Sachsen - Saxony |
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Once again a fluorite from Saxony. This specimen once was in my collection, somehow I forgot to put it in this thread:
Mineral: | Fluorite |
Locality: | Vater Abraham Mine, Scheibenberg, Annaberg District, Erzgebirgskreis, Saxony/Sachsen, Germany | |
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Dimensions: | Specimen size 6 cm |
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Tobi
Site Admin
Joined: 07 Apr 2009
Posts: 4112
Location: Germany
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Posted: Aug 17, 2016 11:43 Post subject: Re: A mineralogical trip through Germany / Sachsen - Saxony |
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Rather large and fine specimen of Germany's most prominent fluorapatite:
Mineral: | Fluorapatite |
Locality: | Greifensteine, Ehrenfriedersdorf, Erzgebirgskreis, Saxony/Sachsen, Germany | |
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Dimensions: | Specimen size 12-13 cm |
Description: |
Collection: Mineralogical Museum Marburg (my photo) |
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Jesse Fisher
Joined: 18 Mar 2009
Posts: 629
Location: San Francisco
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Posted: Jan 04, 2017 12:49 Post subject: Re: A mineralogical trip through Germany / Sachsen - Saxony |
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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.
Mineral: | Fluorite, Barite |
Locality: | Annaberg District, Erzgebirgskreis, Saxony/Sachsen, Germany | |
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Dimensions: | 7x6x4 cm overall size |
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Locality: | Annaberg District, Erzgebirgskreis, Saxony/Sachsen, Germany | |
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Description: |
collection of old labels that came with the fluorite. |
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Andreas Gerstenberg
Joined: 04 Mar 2010
Posts: 336
Location: Chemnitz
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Posted: Jan 18, 2017 12:41 Post subject: Re: A mineralogical trip through Germany / Sachsen - Saxony |
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Rare piece indeed. Old, labelled Annaberg specimens don´t occur that often.
Mineral: | Quartz (variety agate) |
Locality: | Wiederau, Königshain-Wiederau, Mittelsachsen, Baden-Württemberg, Germany | |
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Dimensions: | 3 x 3 cm |
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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"). |
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Jesse Fisher
Joined: 18 Mar 2009
Posts: 629
Location: San Francisco
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Posted: Feb 24, 2017 11:25 Post subject: Re: A mineralogical trip through Germany / Sachsen - Saxony |
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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.
Mineral: | Fluorite, Quartz, Barite, Dolomite |
Locality: | Freiberg District, Erzgebirgskreis, Saxony/Sachsen, Germany | |
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Dimensions: | 11x7x3 cm overall size |
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Tobi
Site Admin
Joined: 07 Apr 2009
Posts: 4112
Location: Germany
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Posted: Feb 24, 2017 13:40 Post subject: Re: A mineralogical trip through Germany / Sachsen - Saxony |
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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
Joined: 18 Mar 2009
Posts: 629
Location: San Francisco
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Posted: Feb 24, 2017 13:52 Post subject: Re: A mineralogical trip through Germany / Sachsen - Saxony |
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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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Posted: Feb 24, 2017 14:13 Post subject: Re: A mineralogical trip through Germany / Sachsen - Saxony |
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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
Joined: 18 Mar 2009
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Posted: Feb 24, 2017 14:43 Post subject: Re: A mineralogical trip through Germany / Sachsen - Saxony |
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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
Joined: 04 Mar 2010
Posts: 336
Location: Chemnitz
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Posted: Feb 25, 2017 14:25 Post subject: Re: A mineralogical trip through Germany / Sachsen - Saxony |
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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
Joined: 02 Nov 2009
Posts: 9
Location: Dresden, Saxony
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Posted: Feb 26, 2017 06:40 Post subject: Re: A mineralogical trip through Germany / Sachsen - Saxony |
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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.
Mineral: | Fluorite |
Locality: | Segen Gottes Mine, Gersdorf, Roßwein, Freiberg District, Erzgebirgskreis, Saxony/Sachsen, Germany | |
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Dimensions: | 25 cm x 20 cm |
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_________________ With best regards!
Thomas |
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Jesse Fisher
Joined: 18 Mar 2009
Posts: 629
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Posted: Feb 27, 2017 11:52 Post subject: Re: A mineralogical trip through Germany / Sachsen - Saxony |
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The specimen definitely has what appears to be dolomite partially coating some of the fluorite crystals.
Mineral: | Fluorite, Quartz, Dolomite |
Locality: | Freiberg District, Erzgebirgskreis, Saxony/Sachsen, Germany | |
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Dimensions: | FOV approximately 3 cm |
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Tobi
Site Admin
Joined: 07 Apr 2009
Posts: 4112
Location: Germany
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Posted: Apr 08, 2017 13:10 Post subject: Re: A mineralogical trip through Germany / Sachsen - Saxony |
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One of the most famous stuff from Saxony besides fluorite - silver ores:
Mineral: | Acanthite |
Locality: | Freiberg District, Erzgebirgskreis, Saxony/Sachsen, Germany | |
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Dimensions: | Specimen size ~ 6 cm |
Description: |
Collection Mineralogical Museum Marburg (my photo) |
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Don Lum
Joined: 03 Sep 2012
Posts: 2869
Location: Arkansas
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Posted: Apr 08, 2017 13:18 Post subject: Re: A mineralogical trip through Germany / Sachsen - Saxony |
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Fluorite from the Bergmännisch Glück Flacher vein
Mineral: | Fluorite, Chalcopyrite |
Locality: | Malwine Mine, Bergmännisch Glück Flacher vein, Wismut shaft 29b, Frohnau, Annaberg-Buchholz, Annaberg District, Erzgebirgskreis, Saxony/Sachsen, Germany | |
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Dimensions: | 40mm x 35mm x 40mm |
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Mineral: | Fluorite, Chalcopyrite |
Locality: | Malwine Mine, Bergmännisch Glück Flacher vein, Wismut shaft 29b, Frohnau, Annaberg-Buchholz, Annaberg District, Erzgebirgskreis, Saxony/Sachsen, Germany | |
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Dimensions: | 40mm x 35mm x 40mm |
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Mineral: | Fluorite, Chalcopyrite |
Locality: | Malwine Mine, Bergmännisch Glück Flacher vein, Wismut shaft 29b, Frohnau, Annaberg-Buchholz, Annaberg District, Erzgebirgskreis, Saxony/Sachsen, Germany | |
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Dimensions: | 40mm x 35mm x 40mm |
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_________________ hogwild |
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Robert Seitz
Joined: 29 Dec 2015
Posts: 261
Location: Phoenix, AZ
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Posted: Apr 09, 2017 15:27 Post subject: Re: A mineralogical trip through Germany / Sachsen - Saxony |
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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.
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Andreas Gerstenberg
Joined: 04 Mar 2010
Posts: 336
Location: Chemnitz
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Posted: Apr 13, 2017 13:05 Post subject: Re: A mineralogical trip through Germany / Sachsen - Saxony |
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Ah, one of the Frohnau fluorites that made it to the US.
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Jesse Fisher
Joined: 18 Mar 2009
Posts: 629
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Posted: Apr 14, 2017 12:31 Post subject: Re: A mineralogical trip through Germany / Sachsen - Saxony |
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Another emigre:
Mineral: | Fluorite |
Locality: | Malwine Mine, Bergmännisch Glück Flacher vein, Wismut shaft 29b, Frohnau, Annaberg-Buchholz, Annaberg District, Erzgebirgskreis, Saxony/Sachsen, Germany | |
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Dimensions: | 6x3x2 cm overall size |
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24068 Time(s) |
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