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GneissWare
Joined: 07 Mar 2008
Posts: 1287
Location: California
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 Posted: Mar 20, 2015 09:33 Post subject: Re: Collection of Michael Shaw |
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| Nice Baryte and tremolite!
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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 2254
Location: Oklahoma
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| Posted: Mar 23, 2015 10:15 Post subject: Re: Collection of Michael Shaw |
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Brazil
| Mineral: | Schorl |
| Locality: | | Jenipapo District, Itinga, Vale do Jequitinhonha, Minas Gerais, Brazil |  |
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| Dimensions: | 4.7 x 5.0 cm |
| Description: |
| Lustrous black schorl with an unusual termination consisting of chevron-shaped growth features. |
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| Viewed: |
37136 Time(s) |
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| Mineral: | Quartz |
| Locality: | | Novo Horizonte, Bahia, Northeast Region, Brazil | |
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| Dimensions: | 4.2 x 6.8 cm |
| Description: |
| Glassy transparent quartz crystals included with acicular golden rutile. The quartz crystals are flattened along the c-axis. |
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| Viewed: |
37085 Time(s) |
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GneissWare
Joined: 07 Mar 2008
Posts: 1287
Location: California
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| Posted: Mar 23, 2015 12:18 Post subject: Re: Collection of Michael Shaw |
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| Very cool, and very bizarre Schorl!
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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 2254
Location: Oklahoma
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| Posted: Mar 23, 2015 19:46 Post subject: Re: Collection of Michael Shaw |
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| GneissWare wrote: | | Very cool, and very bizarre Schorl! |
Thanks Bob. The face shown in the picture is one of the 3 trigonal faces which is greatly enlarged. The other two faces are reduced to almost nothing. Very strange.
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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 2254
Location: Oklahoma
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| Posted: Mar 26, 2015 09:39 Post subject: Re: Collection of Michael Shaw |
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...
| Mineral: | Plumbogummite |
| Locality: | | Yangshuo / Laohu area, Haiyang Mountains, Guilin Prefecture, Guangxi Zhuang Autonomous Region, China | |
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| Dimensions: | 2.4 x 4.4 x 4.8 cm |
| Description: |
| Rich blue botryoidal aggregate of plumbogummite from a find in mid 2014. |
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| Viewed: |
38303 Time(s) |
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| Mineral: | Xenotime-(Y) |
| Locality: | | Novo Horizonte, Bahia, Northeast Region, Brazil | |
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| Dimensions: | 0.8 x 0.9 x 3.6 cm |
| Description: |
| A lustrous semi-translucent chocolate brown xenotime crystal with a steep pyramidal termination. |
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| Viewed: |
38296 Time(s) |
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GneissWare
Joined: 07 Mar 2008
Posts: 1287
Location: California
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| Posted: Mar 26, 2015 09:52 Post subject: Re: Collection of Michael Shaw |
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| Michael, Nice Plumbogummite, and looks damage free, which is rare with these pieces.
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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 2254
Location: Oklahoma
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| Posted: Mar 27, 2015 09:48 Post subject: Re: Collection of Michael Shaw |
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| GneissWare wrote: | | Michael, Nice Plumbogummite, and looks damage free, which is rare with these pieces. |
Thanks Bob. Believe me, I looked at a lot of plumbogummites before I found one without damage.
Michael
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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 2254
Location: Oklahoma
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| Posted: Apr 07, 2015 15:52 Post subject: Re: Collection of Michael Shaw |
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Bisbee!
| Mineral: | Malachite |
| Locality: | | Sacramento Pit, Sacramento Hill, Bisbee, Warren District, Mule Mountains, Cochise County, Arizona, USA | |
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| Dimensions: | 2.7 x 3.1 cm |
| Description: |
| Two sharp intergrown pseudomorphs of malachite after azurite crystals. This specimen was part of a collection assembled by John V. Mitchell, who was the superinendant of the Sacramento Mine from 1921-23. The collection was packed away in a basement for the past 92 years. |
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| Viewed: |
35797 Time(s) |
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| Mineral: | Azurite |
| Locality: | | Calumet and Arizona Mine, Calumet and Arizona group of claims, Bisbee, Warren District, Mule Mountains, Cochise County, Arizona, USA | |
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| Dimensions: | 2.7 x 3.0 cm |
| Description: |
| Bright blue finely-bladed azurite in a semi-wheat sheaf form. This piece was also a part of the Mitchell Collection, and is from the Junction Shaft. |
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| Viewed: |
35836 Time(s) |
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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 2254
Location: Oklahoma
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| Posted: Apr 13, 2015 12:10 Post subject: Re: Collection of Michael Shaw |
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...
| Mineral: | Cerussite |
| Locality: | | Flux Mine, Flux Gulch, Alum Gulch, Patagonia Mountains, Harshaw District, Santa Cruz County, Arizona, USA | |
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| Dimensions: | 6.2 x 8.7 cm |
| Description: |
| Snow white cerussite crystals in a jackstraw arrangement typical of this locality. |
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| Viewed: |
35605 Time(s) |
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| Mineral: | Cerussite |
| Locality: | | Flux Mine, Flux Gulch, Alum Gulch, Patagonia Mountains, Harshaw District, Santa Cruz County, Arizona, USA | |
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| Dimensions: | 7.4 x 10.4 cm |
| Description: |
| Acicular white cerussite crystals with pale gray terminations. |
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| Viewed: |
35635 Time(s) |
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GneissWare
Joined: 07 Mar 2008
Posts: 1287
Location: California
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| Posted: Apr 13, 2015 12:32 Post subject: Re: Collection of Michael Shaw |
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| That 2nd cerussite is particularly excellent!
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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 2254
Location: Oklahoma
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| Posted: Apr 14, 2015 14:42 Post subject: Re: Collection of Michael Shaw |
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| GneissWare wrote: | | That 2nd cerussite is particularly excellent! |
Thanks Bob. Of all the cerussites in my collection, that one is my favorite.
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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 2254
Location: Oklahoma
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| Posted: Apr 22, 2015 10:30 Post subject: Re: Collection of Michael Shaw |
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Vanadinite
| Mineral: | Vanadinite |
| Locality: | | Hamburg Mine, Silver District, Trigo Mountains, La Paz County, Arizona, USA | |
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| Dimensions: | 4.5 x 5.5 cm |
| Description: |
| Lustrous, cherry-red drusy vanadinite crystals to 1 mm covering a breccia matrix. Collected by David Shannon in March 1995. |
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| Viewed: |
36770 Time(s) |
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| Mineral: | Vanadinite |
| Locality: | | Ramsey Mine, Plomosa District, Plomosa Mountains, La Paz County, Arizona, USA | |
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| Dimensions: | 8.2 x 11.7 FOV ~ |
| Description: |
| Lustrous greenish-brown barrel-shaped crystals to 2mm. |
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| Viewed: |
36845 Time(s) |
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| Mineral: | Vanadinite |
| Locality: | | Apache Mine, Globe Hills, Radium, Burch area, Globe Hills District, Globe-Miami District, Gila County, Arizona, USA | |
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| Dimensions: | 4.5 x 7.5 cm |
| Description: |
| Lustrous red crystals of vanadinite to 5 mm covering a breccia matrix with minor colorless micro calcite crystals in association. |
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| Viewed: |
36802 Time(s) |
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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 2254
Location: Oklahoma
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| Posted: Apr 30, 2015 08:12 Post subject: Re: Collection of Michael Shaw |
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Staurolite
| Mineral: | Staurolite |
| Locality: | | Pilar village, Picuris District, Taos County, New Mexico, USA | |
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| Dimensions: | 2.4 to 2.8 cm |
| Description: |
| A 60 degree twin on {231}, a 90 degree cruciform twin on {031}, and a single crystal. |
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| Viewed: |
36859 Time(s) |
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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 2254
Location: Oklahoma
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| Posted: May 09, 2015 15:23 Post subject: Re: Collection of Michael Shaw |
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...
| Mineral: | Wulfenite |
| Locality: | | Total Wreck Mine, Cienega Creek, The Narrows, Empire District, Empire Mountains, Pima County, Arizona, USA | |
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| Dimensions: | 4.5 x 6.2 cm |
| Description: |
| Semi-lustrous yellow-orange tabular crystals to 4 mm on brown gossan matrix. |
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| Viewed: |
36603 Time(s) |
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| Mineral: | Vanadinite |
| Locality: | | Pure Potential Mine, Silver District, Trigo Mountains, La Paz County, Arizona, USA | |
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| Dimensions: | 6.0 x 6.3 cm |
| Description: |
| Lustrous red hexagonal crystals to 4 mm covering a gray manganiferous calcite matrix. |
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| Viewed: |
36563 Time(s) |
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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 2254
Location: Oklahoma
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| Posted: May 20, 2015 11:07 Post subject: Re: Collection of Michael Shaw |
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...
| Mineral: | Calcite |
| Locality: | | Dachang District, Nandan, Hechi Prefecture, Guangxi Zhuang Autonomous Region, China | |
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| Dimensions: | 4.6 x 4.9 cm |
| Description: |
| A colorless low angle rhomb of calcite with a narrow strip of included pyrite bisecting each of the three terminal faces. There is a very good article explaining how these form in the Mar/Apr 2015 issue of Rocks and Minerals authored by none other than FMF member Peter Richards. |
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| Viewed: |
36452 Time(s) |
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| Mineral: | Marcasite |
| Locality: | | Bou Nahas Mine, Oumjrane mining area, Alnif Commune, Tinghir Province, Drâa-Tafilalet Region, Morocco | |
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| Dimensions: | 1.5 x 10.5 cm |
| Description: |
| Curved stalactite of brassy marcasite crystals, some of which display a subtle iridescence. Collected in July 2014. |
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| Viewed: |
36421 Time(s) |
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| Mineral: | Barite |
| Locality: | | Bou Nahas Mine, Oumjrane mining area, Alnif Commune, Tinghir Province, Drâa-Tafilalet Region, Morocco | |
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| Dimensions: | 2.5 x 5.0 cm |
| Description: |
| A floater of lustrous honey-colored Baryte crystals with minor marcasite. Collected in 2014. |
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| Viewed: |
36482 Time(s) |
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