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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 2069
Location: Oklahoma
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 Posted: Oct 06, 2022 08:32 Post subject: Re: Collection of Michael Shaw - Quartz |
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| Mineral: | Quartz (variety rose quartz) |
| Locality: | | Huancayo District, Huancayo Province, Junín Department, Peru |  |
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| Dimensions: | 2.5 x 2.6 cm |
| Description: |
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6582 Time(s) |
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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 2069
Location: Oklahoma
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| Posted: Oct 16, 2022 11:41 Post subject: Re: Collection of Michael Shaw |
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| Mineral: | Calcite |
| Locality: | | Cavnic mining area, Cavnic, Maramures, Romania | |
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| Dimensions: | 7.9 x 6.1 x 2.6 cm |
| Description: |
| Intergrown rhombic calcites with a satiny luster dusted with micro crystals of chalcopyrite. |
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| Viewed: |
6419 Time(s) |
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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 2069
Location: Oklahoma
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| Posted: Oct 17, 2022 14:23 Post subject: Re: Collection of Michael Shaw |
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| Mineral: | Epidote |
| Locality: | | Imilchil area, Anti-Atlas, Er Rachidia Province, Drâa-Tafilalet Region, Morocco | |
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| Dimensions: | 2.5 x 1.1 cm |
| Description: |
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| Viewed: |
6363 Time(s) |
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Tobi
Site Admin
Joined: 07 Apr 2009
Posts: 4106
Location: Germany
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| Posted: Oct 18, 2022 03:08 Post subject: Re: Collection of Michael Shaw - Quartz |
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| Michael Shaw wrote: | Quartz (variety rose quartz)
Huancayo District, Huancayo Province, Junín Department, Peru |
Nice specimen Michael, not easy to get such well-developed and long-prismatic ROSE quartzes!
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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 2069
Location: Oklahoma
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| Posted: Oct 20, 2022 08:23 Post subject: Re: Collection of Michael Shaw |
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| Mineral: | Siderite |
| Locality: | | Turt Mine, Turt, Negresti-Oas, Oas Mountains, Satu Mare, Romania | |
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| Dimensions: | 10.0 x 6.5 x 2.0 cm |
| Description: |
| Delicate stringers of lustrous brown siderite forming a boxwork around a spherical white calcite with minor quartz on the underside. |
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6251 Time(s) |
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Dany Mabillard
Joined: 01 Jul 2019
Posts: 317
Location: Valais
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| Posted: Oct 20, 2022 14:47 Post subject: Re: Collection of Michael Shaw |
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| Ouah (I'm sorry it's French but understandable). What a nice Siderite specimen.
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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 2069
Location: Oklahoma
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| Posted: Oct 20, 2022 18:51 Post subject: Re: Collection of Michael Shaw |
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| Thanks Dany. I thought that it was quite unlike most of the other siderites I have seen from that locality.
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Tobi
Site Admin
Joined: 07 Apr 2009
Posts: 4106
Location: Germany
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| Posted: Oct 21, 2022 01:43 Post subject: Re: Collection of Michael Shaw |
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| Michael Shaw wrote: | | Thanks Dany. I thought that it was quite unlike most of the other siderites I have seen from that locality. |
This is for sure unlike most siderites I have seen from ANYWHERE! Strange but unique and beautiful!
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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 2069
Location: Oklahoma
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| Posted: Oct 21, 2022 10:34 Post subject: Re: Collection of Michael Shaw |
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| Tobi wrote: | | Michael Shaw wrote: | | Thanks Dany. I thought that it was quite unlike most of the other siderites I have seen from that locality. |
This is for sure unlike most siderites I have seen from ANYWHERE! Strange but unique and beautiful! |
Thanks Tobi. I agree, I have never seen a siderite quite like this one. As soon as I saw it, I knew I had to have it for my Romanian collection :>)
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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 2069
Location: Oklahoma
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| Posted: Oct 23, 2022 09:53 Post subject: Re: Collection of Michael Shaw - Rhodochrosite |
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| Mineral: | Rhodochrosite |
| Locality: | | Potosí Mine, Santo Domingo (Francisco Portillo), Santa Eulalia District, Municipio Aquiles Serdán, Chihuahua, Mexico | |
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| Dimensions: | 4.0 x 3.9 x 2.6 cm |
| Description: |
| Botryoidal aggregates of pink rhodochrosite on a brown limonitic matrix with brownish-black hisingerite. |
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| Viewed: |
5976 Time(s) |
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| Mineral: | Rhodochrosite |
| Locality: | | Potosí Mine, Santo Domingo (Francisco Portillo), Santa Eulalia District, Municipio Aquiles Serdán, Chihuahua, Mexico | |
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| Dimensions: | 4.0 x 3.9 x 2.6 cm |
| Description: |
| Underside showing brown limonitic matrix and shiny brownish-black hisingerite. |
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| Viewed: |
5982 Time(s) |
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silvia
Joined: 10 Oct 2021
Posts: 253
Location: UK
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| Posted: Oct 23, 2022 13:37 Post subject: Re: Collection of Michael Shaw - Rhodochrosite |
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A really fine specimen and I especially like the matrix views. Too often in this hobby too many people focus on looks, and I will not disagree that looks are important, and here I am also referring to physical beauty – a fine looking man or a fine looking woman, but this hobby must be based on a firm foundation of science. Matrix views reveal much about the provenance of a specimen and the way it formed within the earth. So keep up the good work, I and probably many others appreciate it.
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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 2069
Location: Oklahoma
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| Posted: Oct 24, 2022 10:55 Post subject: Re: Collection of Michael Shaw |
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| Mineral: | Dolomite |
| Locality: | | Tsumeb Mine, Tsumeb, Otjikoto Region, Namibia | |
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| Dimensions: | 3.8 x 2.7 cm |
| Description: |
| A sculptural group of curved white dolomite crystals previously in the collection of Rock Currier. |
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| Viewed: |
5866 Time(s) |
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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 2069
Location: Oklahoma
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| Posted: Oct 25, 2022 09:31 Post subject: Re: Collection of Michael Shaw |
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| Mineral: | Vanadinite |
| Locality: | | San Carlos Mine (Apex Mine), San Carlos, Municipio Manuel Benavides, Chihuahua, Mexico | |
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| Dimensions: | 2.5 x 1.4 cm |
| Description: |
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| Viewed: |
5789 Time(s) |
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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 2069
Location: Oklahoma
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| Posted: Oct 27, 2022 09:47 Post subject: Re: Collection of Michael Shaw |
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| Mineral: | Barite |
| Locality: | | Rosh Pinah, Lüderitz District, ǁKaras Region, Namibia | |
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| Dimensions: | 5.2 x 4.0 x 1.9 cm |
| Description: |
| Lustrous golden yellow bladed barite crystals on a thin plate of sulfide matrix. |
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| Viewed: |
5688 Time(s) |
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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 2069
Location: Oklahoma
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| Posted: Nov 02, 2022 13:26 Post subject: Re: Collection of Michael Shaw |
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| Mineral: | Rhodochrosite on Pyrite |
| Locality: | | N'Chwaning II Mine, N'Chwaning mining area, Kuruman, Kalahari manganese field (KMF), Northern Cape Province, South Africa | |
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| Dimensions: | 4.9 x 3.9 x 1.3 cm |
| Description: |
| Spherical aggregates of pale pink rhodochrosite on a plate of slightly iridescent golden pyrite crystals. |
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| Viewed: |
5518 Time(s) |
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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 2069
Location: Oklahoma
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| Posted: Nov 04, 2022 08:51 Post subject: Re: Collection of Michael Shaw |
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| Mineral: | Colemanite on Calcite |
| Locality: | | Boron, Kramer District (Kramer Borate District), Kern County, California, USA | |
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| Dimensions: | 2.8 x 2.5 cm |
| Description: |
| Spear-shaped colorless colemanite crystals emanating from yellowish botryoidal calcite. Collected from Extension 20 of the Boron Open Pit by Jim Minette. |
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| Viewed: |
5431 Time(s) |
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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 2069
Location: Oklahoma
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| Posted: Nov 07, 2022 08:57 Post subject: Re: Collection of Michael Shaw |
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| Mineral: | Crandallite, Wardite, Variscite |
| Locality: | | Little Green Monster Variscite Mine, Clay Canyon, Oquirrh Mountains, Fairfield, Utah County, Utah, USA | |
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| Dimensions: | 11.1 x 8.6 x 1.2 cm |
| Description: |
| A thick polished slab of yellow-green crandallite, blue-gray wardite and minor blue-green variscite. |
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| Viewed: |
5332 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, 2022 11:02 Post subject: Re: Collection of Michael Shaw - Zimbabwe quartz |
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| Mineral: | Quartz (variety amethyst) |
| Locality: | | Chibuku Mine, Zambezi Valley, Mashonaland West, Zimbabwe | |
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| Dimensions: | 8.4 x 6.0 x 5.3 cm |
| Description: |
| Intersecting transparent and glassy quartz crystals showing sceptered growth and zones of amethyst and smoky quartz. Small hematite inclusions are also scattered throughout the crystals. |
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| Viewed: |
5225 Time(s) |
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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 2069
Location: Oklahoma
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| Posted: Nov 13, 2022 08:39 Post subject: Re: Collection of Michael Shaw |
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| Mineral: | Chalcedony (variety Polyhedroid) |
| Locality: | | Garguelo farm, São José de Marimbas, Cachoeira dos Índios, Cajazeiras, Paraíba, Brazil | |
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| Dimensions: | 11.4 x 4.1 cm |
| Description: |
| An angular zoned polished polyhedral agate with a small hollow center. The geometric form is the result of infilling between calcite crystals which subsequently dissolved. To read more about these oddities see John White's article in Rocks & Minerals magazine Vol. 89(3): 275-278. |
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| Viewed: |
5120 Time(s) |
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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 2069
Location: Oklahoma
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| Posted: Nov 15, 2022 09:45 Post subject: Re: Collection of Michael Shaw |
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| Mineral: | Celestine |
| Locality: | | Wessels Mine, Hotazel, Kalahari manganese field (KMF), Northern Cape Province, South Africa | |
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| Dimensions: | 3.1 x 2.4 cm |
| Description: |
| Lustrous pale blue celestine crystals to 2.4 cm in length. Celestine from the Wessels Mine usually occurs in rounded aggregates and prismatic crystals are much less common. |
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| Viewed: |
5055 Time(s) |
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