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Tobi
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Joined: 07 Apr 2009
Posts: 4108
Location: Germany
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Posted: Jan 01, 2021 12:40 Post subject: Re: Collection of Michael Shaw |
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Michael Shaw wrote: | Siderite on Quartz with Galena
Turt Mine, Turt, Negresti-Oas, Oas Mountains, Satu Mare, Romania
Dimensions: 3.0 x 3.0 x 6.0 cm
Description: The back of the previous specimen showing the preferential coating of siderite on the quartz and small cube-octahedral galena crystals. | What a beautiful specimen, really lovely! But this would be the front side for me, not the back ;-)
Regards
Tobi
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Michael Shaw
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Joined: 30 Apr 2008
Posts: 2069
Location: Oklahoma
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Posted: Jan 01, 2021 16:11 Post subject: Re: Collection of Michael Shaw |
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Thanks Tobi,
I think you might be right.
Happy New Year to you.
Michael
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Michael Shaw
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Joined: 30 Apr 2008
Posts: 2069
Location: Oklahoma
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Posted: Jan 02, 2021 11:48 Post subject: Re: Collection of Michael Shaw |
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Mineral: | Veszelyite |
Locality: | Palabanda, M'Fouati District, Bouenza Department, Republic of the Congo | |
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Dimensions: | 2.8 x 4.8 x 6.2 cm |
Description: |
Complex parallel intergrowths of pseudo-octahedral dark blue veszelyite and flattened complex skeletal growths on light blue hemimorphite. Collected Jan-Mar. 2020. |
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10404 Time(s) |
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Michael Shaw
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Joined: 30 Apr 2008
Posts: 2069
Location: Oklahoma
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Posted: Jan 10, 2021 10:19 Post subject: Re: Collection of Michael Shaw |
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Mineral: | Calcite |
Locality: | Boldut Mine, Cavnic mining area, Cavnic, Maramures, Romania | |
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Dimensions: | 17.0 x 9.0 x 5.0 cm |
Description: |
Druzy snow white calcite forming interesting pseudomorphs of what I believe were stibnite crystals. There are no remnants left of the previous mineral except for small holes in the bottom of the crystals where the calcite did not completely fill in. The larger crystal has an interesting bend which might be related to the often seen kinks in crystals of stibnite. |
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10264 Time(s) |
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Tobi
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Joined: 07 Apr 2009
Posts: 4108
Location: Germany
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Posted: Jan 15, 2021 02:55 Post subject: Re: Collection of Michael Shaw |
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Michael Shaw wrote: | Calcite
Locality: Boldut Mine, Cavnic mining area, Cavnic, Maramures, Romania
Dimensions: 17.0 x 9.0 x 5.0 cm | Beautiful and impressive sculpture, Michael!
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Michael Shaw
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Joined: 30 Apr 2008
Posts: 2069
Location: Oklahoma
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Posted: Jan 16, 2021 09:36 Post subject: Re: Collection of Michael Shaw |
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Thanks Tobi,
If indeed these were stibnite crystals, I would have liked to see them before they were replaced with calcite. I think they would have been awesome :>)
Here's another piece from Romania.
Mineral: | Quartz (variety amethyst) |
Locality: | Turt Mine, Turt, Negresti-Oas, Oas Mountains, Satu Mare, Romania | |
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Dimensions: | 3.5 x 4.5 cm |
Description: |
Frosted pale purple amethyst crystals standing upright on a crystallized quartz and pyrite matrix. |
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10101 Time(s) |
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Michael Shaw
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Joined: 30 Apr 2008
Posts: 2069
Location: Oklahoma
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Posted: Jan 22, 2021 10:46 Post subject: Re: Collection of Michael Shaw |
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Mineral: | Actinolite |
Locality: | West Uis, Namibia | |
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Dimensions: | 1.5 x 5.5 cm. |
Description: |
Dark green to black striated prism of actinolite with an unusual brushy termination composed of silvery-green fibers. Collected in 2002. |
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9980 Time(s) |
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Michael Shaw
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Joined: 30 Apr 2008
Posts: 2069
Location: Oklahoma
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Posted: Jan 28, 2021 10:04 Post subject: Re: Collection of Michael Shaw |
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Mineral: | Sphalerite |
Locality: | Commodore Mine, Creede District, Mineral County, Colorado, USA | |
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Dimensions: | 6.0 x 5.5 x 3.5 cm. |
Description: |
Lustrous, dark amber, partially-gemmy twinned sphalerite crystals to 2.5 cm with scattered groups of small amethyst crystals and minor galena. |
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9813 Time(s) |
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Mineral: | Sphalerite |
Locality: | Commodore Mine, Creede District, Mineral County, Colorado, USA | |
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Dimensions: | 6.0 x 5.5 x 3.5 cm |
Description: |
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9821 Time(s) |
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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 2069
Location: Oklahoma
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Posted: Feb 05, 2021 17:06 Post subject: Re: Collection of Michael Shaw |
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Mineral: | Silver |
Locality: | Hongda Mine, Xiaoqinggou, Lingqiu, Datong Prefecture, Shanxi Province, China | |
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Dimensions: | 3.0 x 5.0 cm |
Description: |
An arborescent growth of silver wires. |
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9681 Time(s) |
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Michael Shaw
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Joined: 30 Apr 2008
Posts: 2069
Location: Oklahoma
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Posted: Feb 09, 2021 10:46 Post subject: Re: Collection of Michael Shaw |
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Mineral: | Wulfenite |
Locality: | Erupción Mine (Ahumada Mine), Los Lamentos Mountain Range, Municipio Ahumada, Chihuahua, Mexico | |
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Dimensions: | 4.8 x 6.7 cm |
Description: |
Tabular caramel-colored wulfenite crystals to 1.5 cm on edge with spherical groups of brown descloizite on a gossan matrix. |
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9566 Time(s) |
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Tobi
Site Admin
Joined: 07 Apr 2009
Posts: 4108
Location: Germany
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Posted: Feb 10, 2021 04:38 Post subject: Re: Collection of Michael Shaw |
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Wonderful wulfenite specimen, Michael!
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Michael Shaw
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Joined: 30 Apr 2008
Posts: 2069
Location: Oklahoma
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Posted: Feb 10, 2021 10:46 Post subject: Re: Collection of Michael Shaw |
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Thank you Tobi. I hope you and your family are doing well.
Maybe you can help by translating the bottom part of the label. Google translate does not make much sense.
Mineral: | Calcite |
Locality: | Tsumeb Mine, Tsumeb, Otjikoto Region, Namibia | |
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Dimensions: | 5.7 x 6.4 cm |
Description: |
A hemispherical aggregate of pale brown rhombic calcite crystals. |
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9474 Time(s) |
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Mineral: | Calcite label |
Description: |
Oldest of three labels that accompany the specimen. From the information on the labels, I believe the specimen dates to ~ the 1960s. |
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9474 Time(s) |
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Tobi
Site Admin
Joined: 07 Apr 2009
Posts: 4108
Location: Germany
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Posted: Feb 10, 2021 18:39 Post subject: Re: Collection of Michael Shaw |
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Michael Shaw wrote: | Thank you Tobi. I hope you and your family are doing well. Maybe you can help by translating the bottom part of the label. Google translate does not make much sense. | Sure:
Staatl. Mineralien-Niederlage Freiberg, Sa. = State Mineral Dealership Freiberg, Saxony
(Niederlage is a word both for a dealership and a defeat. There's no use of the word for a dealership in German today, so modern translators often translate the word Mineralien-Niederlage to mineral defeat - which of course makes not much sense ;-)
Hope I could help!
Regards & stay well
Tobi
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Michael Shaw
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Posts: 2069
Location: Oklahoma
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Posted: Feb 10, 2021 20:00 Post subject: Re: Collection of Michael Shaw |
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Tobi wrote: | Michael Shaw wrote: | Thank you Tobi. I hope you and your family are doing well. Maybe you can help by translating the bottom part of the label. Google translate does not make much sense. | Sure:
Staatl. Mineralien-Niederlage Freiberg, Sa. = State Mineral Dealership Freiberg, Saxony
(Niederlage is a word both for a dealership and a defeat. There's no use of the word for a dealership in German today, so modern translators often translate the word Mineralien-Niederlage to mineral defeat - which of course makes not much sense ;-)
Hope I could help!
Regards & stay well
Tobi |
Yes, Niederlage translated as defeat, which I could not figure out. Now it makes sense. Thank you my friend.
Michael
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Michael Shaw
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Joined: 30 Apr 2008
Posts: 2069
Location: Oklahoma
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Posted: Feb 11, 2021 10:08 Post subject: Re: Collection of Michael Shaw |
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With Tobi's help on the translation of the label and further research via the Mineralogical Record label archive, I was surprised to find out the Tsumeb calcite is a bit older than I thought. The wording on the label dates it to sometime after 1918, and the label is almost certainly in the the handwriting of Otto F. Edelmann, who was Administrator of the Freiburg Academy from 1920-1952. Another label that accompanies the specimen indicates the piece was obtained by M. Backmann of Dresden in 1979 from Dr. Fritz Hofmann, who was the Director of the Academy from 1972-1996. I'm very happy to have been able to add this additional provenance to the specimen.
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Michael Shaw
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Joined: 30 Apr 2008
Posts: 2069
Location: Oklahoma
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Posted: Feb 14, 2021 10:18 Post subject: Re: Collection of Michael Shaw |
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Mineral: | Sphalerite |
Locality: | Picher Field, Tri-State District, Ottawa County, Oklahoma, USA | |
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Dimensions: | 5.0 x 8.0 cm |
Description: |
Lustrous black sphalerite crystals to 1.5 cm with brassy chalcopyrite crystals scattered over pale pink dolomite crystals. |
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9233 Time(s) |
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Michael Shaw
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Joined: 30 Apr 2008
Posts: 2069
Location: Oklahoma
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Posted: Feb 17, 2021 09:42 Post subject: Re: Collection of Michael Shaw |
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Mineral: | Almandine |
Locality: | Barton Garnet Mines, North River, Warren County, New York, USA | |
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Dimensions: | 8.4 x 5.0 x 3.8 cm |
Description: |
Pods of reddish brown almandine frozen in a coarse-grained greenish black hornblende (pargasite) matrix. The Barton Mine began operations in 1878 mining garnet for abrasives. |
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9062 Time(s) |
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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 2069
Location: Oklahoma
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Posted: Feb 26, 2021 14:07 Post subject: Re: Collection of Michael Shaw |
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Mineral: | Calcite |
Locality: | Boldut Mine, Cavnic mining area, Cavnic, Maramures, Romania | |
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Dimensions: | 5.0 x 6.5 cm |
Description: |
Lustrous pale pink calcite crystal to 3.2 cm set on a crystallized quartz matrix with minor pyrite. |
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8827 Time(s) |
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Tobi
Site Admin
Joined: 07 Apr 2009
Posts: 4108
Location: Germany
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Posted: Mar 04, 2021 02:50 Post subject: Re: Collection of Michael Shaw |
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Michael Shaw wrote: | Calcite
Boldut Mine, Cavnic mining area, Cavnic, Maramures, Romania
5.0 x 6.5 cm | Beautiful little treasure, just perfect how the calcite sits on the quartzes!
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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 2069
Location: Oklahoma
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Posted: Mar 05, 2021 10:20 Post subject: Re: Collection of Michael Shaw |
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Mineral: | Gold |
Locality: | Aouint Ighoman, Assa-Zag Province, Guelmim-Oued Noun Region, Morocco | |
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Dimensions: | 2.0 x 0.5 cm |
Description: |
Parallel growth of octahedral gold crystals with prominent spinel-law twinning. Collected in 2020. Joaquim Callen photo. |
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8564 Time(s) |
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