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Tobi
Joined: 07 Apr 2009
Posts: 3352
Location: Good Old Germany
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 Posted: Oct 19, 2017 12:32 Post subject: Re: Collection of Michael Shaw |
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| The perfect aquamarine specimen, Michael :-)
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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 1565
Location: Oklahoma
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| Posted: Oct 19, 2017 13:56 Post subject: Re: Collection of Michael Shaw |
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| Tobi wrote: | | The perfect aquamarine specimen, Michael :-) |
Thanks Tobi. That's what I thought when I saw it. I have several other aquas from that area of Pakistan, and a couple are quite a bit larger, but I just love the aesthetic arrangement of this one.
Michael
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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 1565
Location: Oklahoma
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| Posted: Oct 20, 2017 09:50 Post subject: Re: Collection of Michael Shaw |
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| Mineral: | Malachite with quartz |
| Locality: | | San Manuel Mine, San Manuel, San Manuel District, Pinal County, Arizona, USA |  |
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| Dimensions: | 1.9 x 2.3 cm |
| Description: |
| A divergent spray of malachite coated with quartz on a drusy quartz matrix. Collected by Frank Valenzuela in 1999. |
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11396 Time(s) |
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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 1565
Location: Oklahoma
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| Posted: Oct 23, 2017 15:24 Post subject: Re: Collection of Michael Shaw |
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| Mineral: | Adamite |
| Locality: | | Ojuela Mine, Mapimí, Municipio Mapimí, Durango, Mexico | |
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| Dimensions: | 2.1 x 2.7 cm |
| Description: |
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| Viewed: |
11305 Time(s) |
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| Mineral: | Adamite |
| Locality: | | Ojuela Mine, Mapimí, Municipio Mapimí, Durango, Mexico | |
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| Dimensions: | 2.1 x 2.7 cm |
| Description: |
| Willard Perkins, who developed the "Perky box" often mounted specimens on a comb tooth stuck in the styrofoam box liner. This Perkins mount was purchased from him by Beth Gordon in 1982 and later became part of Wendy Melanson's thumbnail collection. I will usually remount most of the thumbnails that I acquire, but when I am fortunate to find an original Perkins mount I leave it as is. |
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11296 Time(s) |
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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 1565
Location: Oklahoma
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| Posted: Oct 24, 2017 14:47 Post subject: Re: Collection of Michael Shaw |
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| Mineral: | Calcite on fluorite |
| Locality: | | Knight Mine, Knight vein, Illinois-Kentucky Fluorspar Mining District, Hardin County, Illinois, USA | |
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| Dimensions: | 4.0 x 5.6 x 6.5 cm. |
| Description: |
| A hemispherical-shaped mound of two generations of calcite on purple fluorite. The 1st generation of calcite is yellow and is partially overgrown by flattened creamy white rhombs. An unusual specimen for the district. |
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| Viewed: |
11247 Time(s) |
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| Mineral: | Calcite on fluorite |
| Locality: | | Knight Mine, Knight vein, Illinois-Kentucky Fluorspar Mining District, Hardin County, Illinois, USA | |
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| Dimensions: | 4.0 x 5.6 x 6.5 cm. |
| Description: |
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| Viewed: |
11236 Time(s) |
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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 1565
Location: Oklahoma
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| Posted: Oct 26, 2017 13:05 Post subject: Re: Collection of Michael Shaw |
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| Mineral: | Rhodochrosite |
| Locality: | | Grizzly Bear Mine, Bear Creek Canyon, Ouray, Ouray District, San Juan Mountains, Ouray County, Colorado, USA | |
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| Dimensions: | 2.1 x 4.1 x 5.8 cm |
| Description: |
| Pale pink rosettes of rhodochrosite resting on a floater plate of greenish-tinged quartz pseudomorphing anhydrite. These pseudos were uncommon and collected in the 1970s. |
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| Viewed: |
11293 Time(s) |
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| Mineral: | Rhodochrosite on quartz |
| Locality: | | Grizzly Bear Mine, Bear Creek Canyon, Ouray, Ouray District, San Juan Mountains, Ouray County, Colorado, USA | |
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| Dimensions: | 2.1 x 4.1 x 5.8 cm |
| Description: |
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| Viewed: |
11203 Time(s) |
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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 1565
Location: Oklahoma
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| Posted: Oct 30, 2017 15:55 Post subject: Re: Collection of Michael Shaw |
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| Mineral: | Prehnite |
| Locality: | | Merelani Hills, Lelatema Mountains, Simanjiro District, Manyara Region, Tanzania | |
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| Dimensions: | 4.6 x 5.1 x 7.5 cm |
| Description: |
| Unusually distinct blocky crystals of yellow-green prehnite associated with gray graphite. Collected in 2017. |
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| Viewed: |
11015 Time(s) |
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Tobi
Joined: 07 Apr 2009
Posts: 3352
Location: Good Old Germany
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| Posted: Oct 31, 2017 03:03 Post subject: Re: Collection of Michael Shaw |
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| crosstimber wrote: | Prehnite
Merelani Hills, Lelatema Mountains, Simanjiro District, Manyara Region, Tanzania
Description: Unusually distinct blocky crystals of yellow-green prehnite associated with gray graphite. Collected in 2017. |
Gemmy prehnite in distinct crystals - not bad, Michael! :-)
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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 1565
Location: Oklahoma
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| Posted: Oct 31, 2017 13:41 Post subject: Re: Collection of Michael Shaw |
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| Tobi wrote: | | crosstimber wrote: | Prehnite
Merelani Hills, Lelatema Mountains, Simanjiro District, Manyara Region, Tanzania
Description: Unusually distinct blocky crystals of yellow-green prehnite associated with gray graphite. Collected in 2017. |
Gemmy prehnite in distinct crystals - not bad, Michael! :-) |
Thanks Tobi.
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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 1565
Location: Oklahoma
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| Posted: Nov 02, 2017 14:05 Post subject: Re: Collection of Michael Shaw |
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| Mineral: | Fluorite |
| Locality: | | Dongpo, Yizhang District, Chenzhou Prefecture, Hunan Province, China | |
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| Dimensions: | 3.9 x 7.9 x 10.1 cm |
| Description: |
| Cuboctahedral zoned purple fluorite crystals with stepped growth associated with colorless quartz and pale yellow calcite crystals. |
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| Viewed: |
10812 Time(s) |
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| Mineral: | Fluorite |
| Locality: | | Dongpo, Yizhang District, Chenzhou Prefecture, Hunan Province, China | |
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| Dimensions: | 3.9 x 7.9 x 10.1 cm, FOV = 4.5 cm |
| Description: |
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| Viewed: |
10835 Time(s) |
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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 1565
Location: Oklahoma
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| Posted: Nov 03, 2017 14:08 Post subject: Re: Collection of Michael Shaw |
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| Mineral: | Stokesite |
| Locality: | | Urucum Mine, Galiléia, Vale do Rio Doce, Minas Gerais, Brazil | |
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| Dimensions: | 1.5 x 2.3 cm |
| Description: |
| Intergrown spheres of lenticular stokesite with small brown crystals from the microlite group. |
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| Viewed: |
10791 Time(s) |
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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 1565
Location: Oklahoma
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| Posted: Nov 05, 2017 09:39 Post subject: Re: Collection of Michael Shaw |
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Congo
| Mineral: | Gypsum |
| Locality: | | Mashamba West Mine, Kolwezi District, Lualaba, Katanga Copper Crescent, Katanga (Shaba), Congo DR (Zaire) | |
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| Dimensions: | 1.9 x 2.6 cm |
| Description: |
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| Viewed: |
10610 Time(s) |
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| Mineral: | Carrollite |
| Locality: | | Kamoya South II Mine, Kamoya, Kambove District, Katanga Copper Crescent, Katanga (Shaba), Congo DR (Zaire) | |
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| Dimensions: | 1.5 x 1.8 cm |
| Description: |
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| Viewed: |
10644 Time(s) |
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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 1565
Location: Oklahoma
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| Posted: Nov 07, 2017 15:24 Post subject: Re: Collection of Michael Shaw |
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| Mineral: | Calcite on sphalerite |
| Locality: | | Elmwood Mine, Carthage, Central Tennessee Ba-F-Pb-Zn District, Smith County, Tennessee, USA | |
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| Dimensions: | 2.0 x 3.0 cm |
| Description: |
| A common mineral from a prolific locality, but not so easy to find a good piece in TN size. |
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| Viewed: |
10525 Time(s) |
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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 1565
Location: Oklahoma
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| Posted: Nov 09, 2017 11:42 Post subject: Re: Collection of Michael Shaw |
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| Mineral: | Scheelite |
| Locality: | | Camp Bird Mine, Camp Bird, San Juan Mountains, Ouray, Sneffels District, Ouray County, Colorado, USA | |
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| Dimensions: | 6.0 x 8.6 x 9.2 cm. |
| Description: |
| Sharp tetragonal brown scheelite crystals to 1.4 cm on a sugary quartz matrix. Collected in the late 70s/early 80s from the 7850 Stope, 5 Level, King Ore Shoot, Camp Bird Vein. |
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| Viewed: |
10453 Time(s) |
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| Mineral: | Scheelite |
| Locality: | | Camp Bird Mine, Camp Bird, San Juan Mountains, Ouray, Sneffels District, Ouray County, Colorado, USA | |
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| Dimensions: | FOV = 2.0 cm |
| Description: |
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| Viewed: |
10445 Time(s) |
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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 1565
Location: Oklahoma
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| Posted: Nov 11, 2017 09:57 Post subject: Re: Collection of Michael Shaw |
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| Mineral: | Chalcopyrite |
| Locality: | | Second Sovetskii Mine, Dalnegorsk, Kavalerovo Mining District, Primorskiy Kray, Far-Eastern Region, Russia | |
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| Dimensions: | 5.0 x 5.6 cm. |
| Description: |
| An intergrown aggregate of golden-metallic chalcopyrite with no point of attachment associated with two flattened rhombs of colorless calcite. |
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| Viewed: |
10362 Time(s) |
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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 1565
Location: Oklahoma
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| Posted: Nov 14, 2017 15:16 Post subject: Re: Collection of Michael Shaw |
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Barite
| Mineral: | Baryte |
| Locality: | | Linwood Mine, Buffalo, Scott County, Iowa, USA | |
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| Dimensions: | 6.9 x 8.9 x 10.1 cm. |
| Description: |
| A hedgehog aggregate of chisel-shaped, cream-colored barite spears emanating from a small bit of altered limestone. Collected in summer 2017. |
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| Viewed: |
10262 Time(s) |
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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 1565
Location: Oklahoma
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| Posted: Nov 17, 2017 10:04 Post subject: Re: Collection of Michael Shaw |
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More barite ...
| Mineral: | Baryte |
| Locality: | | Northumberland Mine, Toquima Range, Northumberland District, Nye County, Nevada, USA | |
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| Dimensions: | 3.0 x 7.0 x 8.0 cm. |
| Description: |
| Stout golden chisel-shaped barite crystals to 3.7 cm with dark gray zones on a gray jasperoid matrix. Several crystals are doubly terminated. |
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| Viewed: |
10247 Time(s) |
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| Mineral: | Baryte |
| Locality: | | Northumberland Mine, Toquima Range, Northumberland District, Nye County, Nevada, USA | |
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| Dimensions: | 3.0 x 7.0 x 8.0 cm. |
| Description: |
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| Viewed: |
10153 Time(s) |
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Tobi
Joined: 07 Apr 2009
Posts: 3352
Location: Good Old Germany
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| Posted: Nov 18, 2017 01:28 Post subject: Re: Collection of Michael Shaw |
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| I really like the calcite on chalcopyrite from Dalnegorsk, Michael ... even though there's no galena on it ;-)
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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 1565
Location: Oklahoma
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| Posted: Nov 20, 2017 12:21 Post subject: Re: Collection of Michael Shaw |
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| Mineral: | Fluorite |
| Locality: | | M. F. Oxford #7 Mine, Ozark-Mahoning group, Cave-in-Rock, Cave-in-Rock Sub District, Hardin County, Illinois, USA | |
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| Dimensions: | 4.5 x 7.0 x 10.0 cm |
| Description: |
| Rich yellow-orange fluorite with pale purple/blue rims on a light gray, argillaceous sandstone matrix typical of Bethel Level. |
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| Viewed: |
10039 Time(s) |
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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 1565
Location: Oklahoma
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| Posted: Nov 22, 2017 13:28 Post subject: Re: Collection of Michael Shaw |
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| Mineral: | Calcite and Fluorite |
| Locality: | | Minerva I Mine, Ozark-Mahoning group, Cave-in-Rock Sub-District, Hardin County, Illinois, USA | |
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| Dimensions: | 2.3 x 5.3 cm |
| Description: |
| A pale yellow scalenohedral calcite crystal measuring 5.0 cm in length resting on a small shard of matrix surrounded by transparent pale lilac-colored fluorite crystals. |
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| Viewed: |
9966 Time(s) |
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