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Michael Shaw
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Joined: 30 Apr 2008
Posts: 2069
Location: Oklahoma
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Posted: Oct 18, 2020 08:21 Post subject: Re: Collection of Michael Shaw |
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Mineral: | Fluorite and Calcite |
Locality: | Choir area, Province Govisümber, Mongolia | |
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Dimensions: | 4.0 x 6.1 x 8.5 cm. |
Description: |
Lustrous pale green cubic fluorite crystals to 1.8 cm on edge associated with honey-colored scalenohedral calcite crystals scattered over the top edge and back of the specimen. |
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11871 Time(s) |
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Tobi
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Joined: 07 Apr 2009
Posts: 4108
Location: Germany
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Posted: Oct 19, 2020 02:00 Post subject: Re: Collection of Michael Shaw |
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Michael Shaw wrote: | Fluorite and Calcite
Choir area, Province Govisümber, Mongolia
Dimensions: 4.0 x 6.1 x 8.5 cm.
Description: Lustrous pale green cubic fluorite crystals to 1.8 cm on edge associated with honey-colored scalenohedral calcite crystals scattered over the top edge and back of the specimen. | Very beautiful combination piece from that quite new locality!
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Michael Shaw
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Location: Oklahoma
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Posted: Oct 19, 2020 10:52 Post subject: Re: Collection of Michael Shaw |
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Tobi wrote: | Michael Shaw wrote: | Fluorite and Calcite
Choir area, Province Govisümber, Mongolia
Dimensions: 4.0 x 6.1 x 8.5 cm.
Description: Lustrous pale green cubic fluorite crystals to 1.8 cm on edge associated with honey-colored scalenohedral calcite crystals scattered over the top edge and back of the specimen. | Very beautiful combination piece from that quite new locality! |
Thanks Tobi. I have another one from this same location ( https://www.mineral-forum.com/message-board/download.php?id=92584 ) with much larger crystals, but I really like the calcite accent on this piece.
Michael
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Tobi
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Posts: 4108
Location: Germany
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Posted: Oct 20, 2020 00:54 Post subject: Re: Collection of Michael Shaw |
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Michael Shaw wrote: | Tobi wrote: | Michael Shaw wrote: | Fluorite and Calcite
Choir area, Province Govisümber, Mongolia
Dimensions: 4.0 x 6.1 x 8.5 cm.
Description: Lustrous pale green cubic fluorite crystals to 1.8 cm on edge associated with honey-colored scalenohedral calcite crystals scattered over the top edge and back of the specimen. | Very beautiful combination piece from that quite new locality! | Thanks Tobi. I have another one from this same location ( https://www.mineral-forum.com/message-board/download.php?id=92584 ) with much larger crystals, but I really like the calcite accent on this piece.Michael | I like it too. The other specimen is also very aesthetic but I would prefer the one above because of the contrasting calcite crystals. However, both very nice, Choir is also on my fluorite wish list ;-)
Regards
Tobi
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Michael Shaw
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Posts: 2069
Location: Oklahoma
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Posted: Oct 21, 2020 10:07 Post subject: Re: Collection of Michael Shaw |
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Although the Minerva #1 Mine is famous for it's exquisite color-zoned fluorites, it also produced some remarkable specimens of barite, strontianite, witherite, and benstonite. The little barite shown below was collected in the 1960s and is one of my favorites from this location.
Mineral: | Barite |
Locality: | Minerva I Mine, Ozark-Mahoning group, Cave-in-Rock Sub-District, Hardin County, Illinois, USA | |
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Dimensions: | 3.9 x 5.8 cm |
Description: |
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11621 Time(s) |
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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 2069
Location: Oklahoma
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Posted: Oct 23, 2020 09:29 Post subject: Re: Collection of Michael Shaw |
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Mineral: | Albite (variety pericline) |
Locality: | Wallis (Valais), Switzerland | |
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Dimensions: | 2.3 x 4.7 x 5.9 cm |
Description: |
A floater specimen of white albite crystals to 2.2 cm with small colorless adularia crystals on the terminations. |
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11509 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: Oct 27, 2020 14:16 Post subject: Re: Collection of Michael Shaw |
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Mineral: | Euchroite |
Locality: | Ľubietová (Libethen), Banská Bystrica, Slovak Republic | |
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Dimensions: | 5.5 x 5.8 x 10.7 cm |
Description: |
Small emerald green euchroite crystals to 3 mm on a thin coating of black tenorite over limonite. .From the Type Locality. |
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11471 Time(s) |
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Tobi
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Joined: 07 Apr 2009
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Location: Germany
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Posted: Oct 28, 2020 05:15 Post subject: Re: Collection of Michael Shaw |
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Michael Shaw wrote: | The little barite shown below was collected in the 1960s and is one of my favorites from this location.
Barite
Minerva I Mine, Ozark-Mahoning group, Cave-in-Rock Sub-District, Hardin County, Illinois, USA
3.9 x 5.8 cm | Outstanding specimen, Michael, never seen something like that from Minerva.
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Michael Shaw
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Location: Oklahoma
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Posted: Oct 28, 2020 11:23 Post subject: Re: Collection of Michael Shaw |
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Thanks Tobi. I just love the sculptural shape of the 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: Oct 29, 2020 14:25 Post subject: Re: Collection of Michael Shaw |
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Mineral: | Acanthite |
Locality: | Imiter Mine, Jebel Saghro, Imiter District, Tinghir Province, Drâa-Tafilalet Region, Morocco | |
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Dimensions: | 2.5 x 4.0 cm |
Description: |
Arborescent growth of bright acanthite. |
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11216 Time(s) |
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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 2069
Location: Oklahoma
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Posted: Nov 10, 2020 14:01 Post subject: Re: Collection of Michael Shaw |
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Mineral: | Willemite ps. after Descloizite |
Locality: | Chah Milleh Mine, Chah Milleh, Anarak District, Nain, Isfahan Province, Iran | |
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Dimensions: | 4.5 x 5.0 x 5.0 cm |
Description: |
Arborescent crystal groups of micro crystalline willemite replacing descloizite with a few small barrel-shaped orange mimetites. Collected 8-2015. |
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11094 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: Nov 12, 2020 11:27 Post subject: Re: Collection of Michael Shaw |
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Mineral: | Calcite |
Locality: | Benchmark Quarry, St. Johnsville, Montgomery County, New York, USA | |
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Dimensions: | 5.5 x 4.3 x 2.5 cm. |
Description: |
Honey-colored calcite crystals on a gray dolostone matrix with white dolomite rhombs and a bit of druzy marcasite. |
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11031 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: Nov 16, 2020 14:32 Post subject: Re: Collection of Michael Shaw |
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Mineral: | Cerussite |
Locality: | Daoping Mine, Gongcheng, Guilin Prefecture, Guangxi Zhuang Autonomous Region, China | |
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Dimensions: | 4.5 x 2.5 x 1.0 cm |
Description: |
Loose floater of lustrous twinned cerussite showing a subtle color shift from colorless to yellowish brown to pale orange-colored zones. Collected from a small pocket in 2011. |
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10909 Time(s) |
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Mineral: | Cerussite |
Locality: | Daoping Mine, Gongcheng, Guilin Prefecture, Guangxi Zhuang Autonomous Region, China | |
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Dimensions: | 4.5 x 2.5 x 1.0 cm |
Description: |
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10908 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: Nov 23, 2020 12:28 Post subject: Re: Collection of Michael Shaw |
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Mineral: | Azurite and Malachite |
Locality: | M'Cissi, Alnif Commune, Tinghir Province, Drâa-Tafilalet Region, Morocco | |
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Dimensions: | 6.5 x 4.0 x 3.0 cm |
Description: |
Botryoidal aggregates of bright blue lenticular azurite crystals with minor malachite covering a limonite and quartz matrix. |
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10782 Time(s) |
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Tobi
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Posts: 4108
Location: Germany
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Posted: Nov 26, 2020 05:31 Post subject: Re: Collection of Michael Shaw |
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Michael wrote: | Azurite and Malachite
M'Cissi, Alnif, Tinghir Province, Drâa-Tafilalet Region, Morocco
6.5 x 4.0 x 3.0 cm | Stunning blue colour, absolutely wonderful little M'Cissi killer specimen!
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Michael Shaw
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Joined: 30 Apr 2008
Posts: 2069
Location: Oklahoma
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Posted: Nov 26, 2020 11:09 Post subject: Re: Collection of Michael Shaw |
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Tobi wrote: | Michael wrote: | Azurite and Malachite
M'Cissi, Alnif, Tinghir Province, Drâa-Tafilalet Region, Morocco
6.5 x 4.0 x 3.0 cm | Stunning blue colour, absolutely wonderful little M'Cissi killer specimen! |
Thank you for your comment Tobi. I have been looking to add one of these to our Moroccan suite for some time and this one checked all of the boxes.
Stay well,
Michael
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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 2069
Location: Oklahoma
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Posted: Nov 29, 2020 12:07 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: | 6.0 x 4.0 x 3.0 cm |
Description: |
An aggregate of spherical-shaped calcite crystals with a 2nd generation of pale pinkish calcite crystals on top. |
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10481 Time(s) |
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Michael Shaw
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Posts: 2069
Location: Oklahoma
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Posted: Dec 05, 2020 13:44 Post subject: Re: Collection of Michael Shaw |
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Mineral: | Hübnerite |
Locality: | Mundo Nuevo mining area, Mundo Nuevo, Huamachuco, Sánchez Carrión Province, La Libertad Department, Peru | |
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Dimensions: | 4.5 x 3.0 cm |
Description: |
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10312 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: Dec 06, 2020 13:55 Post subject: Re: Collection of Michael Shaw |
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Mineral: | Quartz (variety chalcedony) |
Locality: | Aurangabad, Aurangabad District, Maharashtra, India | |
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Dimensions: | 3.9 x 4.1 cm |
Description: |
Thin stalactites of colorless chalcedony with blue vermiform chalcedony associated with creamy white okenite. |
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10234 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: Dec 29, 2020 11:58 Post subject: Re: Collection of Michael Shaw |
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Mineral: | Siderite on Quartz |
Locality: | Turt Mine, Turt, Negresti-Oas, Oas Mountains, Satu Mare, Romania | |
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Dimensions: | 3.0 x 3.0 x 6.0 cm |
Description: |
Light brown crystallized siderite preferentially coating a group of quartz crystals. |
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9811 Time(s) |
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Mineral: | Siderite on Quartz with Galena |
Locality: | Turt Mine, Turt, Negresti-Oas, Oas Mountains, Satu Mare, Romania | |
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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. |
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9829 Time(s) |
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