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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 1552
Location: Oklahoma
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 Posted: Dec 10, 2018 09:50 Post subject: Re: Collection of Michael Shaw |
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| Mineral: | Barite |
| Locality: | | Flagstaff Mountain, Northport, Northport District, Stevens County, Washington, USA |  |
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| Dimensions: | 2.8 x 4.5 cm |
| Description: |
| An intergrown group of blocky, creamy white to pale yellow barite crystals from another seldom seen locality. |
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| Viewed: |
6719 Time(s) |
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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 1552
Location: Oklahoma
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| Posted: Dec 12, 2018 09:43 Post subject: Re: Collection of Michael Shaw |
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Another barite.
| Mineral: | Barite |
| Locality: | | San Diego Mine, vein volcán, Santa Bárbara, Municipio Santa Bárbara, Chihuahua, Mexico | |
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| Dimensions: | 5.9 x 8.3 cm |
| Description: |
| A plate of glassy colorless to pale yellow chisel-shaped crystals to 1.8 cm. |
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| Viewed: |
6649 Time(s) |
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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 1552
Location: Oklahoma
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| Posted: Dec 16, 2018 10:56 Post subject: Re: Collection of Michael Shaw |
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| Mineral: | Smithsonite |
| Locality: | | Berg Aukas, Grootfontein District, Otjozondjupa Region, Namibia | |
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| Dimensions: | 4.5 x 6.0 cm |
| Description: |
| An unusual smithsonite consisting of rounded scalenohedrons with numerous "scales" on each face with deep translucent amber color and milky to clear tips. |
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| Viewed: |
6539 Time(s) |
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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 1552
Location: Oklahoma
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| Posted: Dec 18, 2018 14:49 Post subject: Re: Collection of Michael Shaw |
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| Mineral: | Fluorite |
| Locality: | | Rogerley Mine, Frosterley, Weardale, North Pennines Orefield, County Durham, United Kingdom England | |
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| Dimensions: | 2.5 x 2.8 cm |
| Description: |
| A gemmy penetration twinned fluorite. |
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| Viewed: |
6480 Time(s) |
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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 1552
Location: Oklahoma
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| Posted: Dec 23, 2018 12:44 Post subject: Re: Collection of Michael Shaw |
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| Mineral: | Calcite |
| Locality: | | Sokolovskoe Mine (Sokolovskiy Mine), Rudny, Kostanay Region, Kazakhstan | |
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| Dimensions: | 2.8 x 3.0 cm |
| Description: |
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| Viewed: |
6366 Time(s) |
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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 1552
Location: Oklahoma
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| Posted: Dec 26, 2018 11:40 Post subject: Re: Collection of Michael Shaw |
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| Mineral: | Calcite |
| Locality: | | Dalen-Kjørholt Mine, Kjørholt, Brevik, Porsgrunn, Telemark, Østlandet, Norway | |
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| Dimensions: | 4.1 x 4.9 cm. |
| Description: |
| Amber-colored calcite scalenohedron with mosaic-textured faces hosting two smaller sidecar crystals. |
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| Viewed: |
6282 Time(s) |
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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 1552
Location: Oklahoma
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| Posted: Dec 29, 2018 12:07 Post subject: Re: Collection of Michael Shaw |
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| Mineral: | Rhodochrosite |
| Locality: | | Trepča Complex, Trepča Valley, Kosovska Mitrovica, Kosovska Mitrovica District, Kosovo | |
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| Dimensions: | 4.7 x 7.8 cm |
| Description: |
| Spherical aggregates of light pink rhodochrosite associated with bright silver arsenopyrite and small quartz crystals on massive pyrite. |
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| Viewed: |
6170 Time(s) |
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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 1552
Location: Oklahoma
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| Posted: Dec 31, 2018 13:51 Post subject: Re: Collection of Michael Shaw |
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| Mineral: | Stibnite |
| Locality: | | San Martín Mine, San Martín, San Martín-Sabinas District, Municipio Sombrerete, Zacatecas, Mexico | |
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| Dimensions: | 4.6 x 7.3 x 10.7 cm |
| Description: |
| Metallic lead gray stibnite crystals to 4.5 cm in length on a gray matrix. The Spanish first began mining at this locality in 1555. |
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| Viewed: |
6103 Time(s) |
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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 1552
Location: Oklahoma
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| Posted: Jan 03, 2019 14:36 Post subject: Re: Collection of Michael Shaw |
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Polymorphs of Carbon.
| Mineral: | Graphite |
| Locality: | | Amitsoq Mine, Nanortalik, Kujalleq, Greenland | |
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| Dimensions: | 3.9 x 10.0 cm |
| Description: |
| Steel-gray sub-metallic grapphite flakes. Obtained many years ago from Claus Hedegaard. |
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| Viewed: |
6000 Time(s) |
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| Mineral: | Diamond |
| Locality: | | Mazaruni river, Imbaimadai, Cuyuni-Mazaruni Region, Guyana | |
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| Description: |
| A colorless octahedral diamond crystal measuring 0.6 mm point to point. |
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| Viewed: |
5998 Time(s) |
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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 1552
Location: Oklahoma
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| Posted: Jan 05, 2019 10:52 Post subject: Re: Collection of Michael Shaw |
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| Mineral: | Calcite |
| Locality: | | September Mine (9th of September Mine) , Madan mining area, Rhodope Mountains, Smolyan Oblast, Bulgaria | |
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| Dimensions: | 5.1 x 8.0 cm |
| Description: |
| Lenticular calcite rhombs covering the top of a crystallized quartz matrix. |
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| Viewed: |
5907 Time(s) |
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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 1552
Location: Oklahoma
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| Posted: Jan 10, 2019 11:03 Post subject: Re: Collection of Michael Shaw |
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| Mineral: | Stilbite |
| Locality: | | South Fork of Toutle River, Mt. St. Helens National Volcanic Monument, Skamania County, Washington, USA | |
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| Dimensions: | 6.9 x 8.4 cm |
| Description: |
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| Viewed: |
5766 Time(s) |
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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 1552
Location: Oklahoma
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| Posted: Jan 14, 2019 09:57 Post subject: Re: Collection of Michael Shaw |
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| Mineral: | Sphalerite on Marcasite |
| Locality: | | Blackstone Mine, Shullsburg area, Upper Mississippi Valley District, Lafayette County, Wisconsin, USA | |
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| Dimensions: | 5.5 x 9.5 cm |
| Description: |
| Spherical aggregates of black sphalerite crystals to 1.2 cm on matrix of crystallized marcasite. |
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| Viewed: |
5701 Time(s) |
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| Mineral: | Sphalerite on Marcasite |
| Locality: | | Blackstone Mine, Shullsburg area, Upper Mississippi Valley District, Lafayette County, Wisconsin, USA | |
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| Dimensions: | FOV ~ 3.0 x 4.0 cm |
| Description: |
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| Viewed: |
5713 Time(s) |
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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 1552
Location: Oklahoma
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| Posted: Jan 16, 2019 12:04 Post subject: Re: Collection of Michael Shaw |
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| Mineral: | Coronadite |
| Locality: | | Tadaout, vein 12, Taouz, Er Rachidia Province, Drâa-Tafilalet Region, Morocco | |
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| Dimensions: | 3.0 x 6.6 x 11.5 cm |
| Description: |
| Stalactitic matte black coronadite. Analysis indicates small zones of hollandite and pyrolusite are also present. |
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| Viewed: |
5598 Time(s) |
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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 1552
Location: Oklahoma
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| Posted: Jan 18, 2019 12:22 Post subject: Re: Collection of Michael Shaw |
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| Mineral: | Baryte |
| Locality: | | Willow Creek, Freighter Spring, Custer County, Idaho, USA | |
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| Dimensions: | 6.1 x 8.1 cm |
| Description: |
| Blocky straw-colored chisel-shaped barite crystals to 1.2 cm on edge lining a cavity in boxwork barite. |
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| Viewed: |
5504 Time(s) |
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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 1552
Location: Oklahoma
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| Posted: Jan 21, 2019 12:22 Post subject: Re: Collection of Michael Shaw |
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| Mineral: | Fluorite on Muscovite |
| Locality: | | Chumar Bakhoor, Hunza Valley, Nagar District, Gilgit-Baltistan (Northern Areas), Pakistan | |
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| Dimensions: | 4.2 x 5.9 cm |
| Description: |
| Two cube-octahedral fluorite crystals with dodecahedral modifications resting on a matrix of silvery muscovite crystals. |
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| Viewed: |
5394 Time(s) |
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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 1552
Location: Oklahoma
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| Posted: Jan 23, 2019 10:02 Post subject: Re: Collection of Michael Shaw |
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I have had this piece in my collection for 57 years. It was my first copper specimen and it spurred my more than casual interest in native coppers from Michigan's UP. The piece was lacquered when I purchased it for $6 from Alvin Schortmann at his shop in Easthampton, Massachusetts. I once considered removing the coating, but decided to leave it as Alvin had prepared it. A visit to Schortmann's shop was a magical experience for a young mineral collector.
| Mineral: | Copper |
| Locality: | | Kearsarge Mine, Kearsarge, Houghton County, Michigan, USA | |
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| Dimensions: | 4.5 x 8.5 cm |
| Description: |
| Copper with small patches of epidotized basalt and quartz. |
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| Viewed: |
5269 Time(s) |
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| Mineral: | Copper |
| Locality: | | Kearsarge Mine, Kearsarge, Houghton County, Michigan, USA | |
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| Dimensions: | 4.5 x 8.5 cm |
| Description: |
| Reverse side of the previous specimen. |
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| Viewed: |
5265 Time(s) |
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Bob Harman
Joined: 06 Nov 2015
Posts: 696
Location: Indiana
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| Posted: Jan 23, 2019 10:42 Post subject: Re: Collection of Michael Shaw |
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For me an especially interesting bit of history, for I too have minerals from Schortmann's minerals. (on their original label, the name was spelled with 2 "nn"s). Their store was at 6 and 10 McKinley Avenue in Easthampton, Mass.
The box of 12 mineral chips was labeled "US #6 Minerals".
I have it photographed, but am reluctant to add that picture onto your collection thread. BOB
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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 1552
Location: Oklahoma
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| Posted: Jan 23, 2019 11:14 Post subject: Re: Collection of Michael Shaw |
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| Bob Harman wrote: | For me an especially interesting bit of history, for I too have minerals from Schortmann's minerals. (on their original label, the name was spelled with 2 "nn"s). Their store was at 6 and 10 McKinley Avenue in Easthampton, Mass.
The box of 12 mineral chips was labeled "US #6 Minerals" |
You are absolutely correct Bob. Thanks for catching my mistake. There were 2 Schortmann brothers - Alvin and Raymond. When I visited their shop, it was located on 6 McKinley Avenue in Easthampton and all of my labels have the 6 McKinley Avenue address.
Here's another piece I purchased for $1 on the same visit and the label that accompanied it. Notice the spelling of the Ojuela Mine.
| Mineral: | Plattnerite |
| Locality: | | Ojuela Mine, Mapimí, Municipio Mapimí, Durango, Mexico | |
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| Dimensions: | 3.2 x 3.4 cm |
| Description: |
| Metallic black acicular crystals on an ocherous brown gossan matrix. |
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| Viewed: |
5233 Time(s) |
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| Description: |
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| Viewed: |
5229 Time(s) |
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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 1552
Location: Oklahoma
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| Posted: Jan 28, 2019 11:35 Post subject: Re: Collection of Michael Shaw |
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| Mineral: | Opal-(AN) |
| Locality: | | Tepetate, Municipio Villa de Arriaga, San Luis Potosí, Mexico | |
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| Dimensions: | 5.0 x 5.2 cm |
| Description: |
| Bubbly transparent hyalite opal on a matrix of spongy tan chalcedony from a find in early 2016. |
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| Viewed: |
4938 Time(s) |
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| Mineral: | Opal-(AN) |
| Locality: | | Tepetate, Municipio Villa de Arriaga, San Luis Potosí, Mexico | |
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| Dimensions: | 5.0 x 5.2 cm |
| Description: |
| Intense green fluorescence under SW UV. |
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| Viewed: |
4925 Time(s) |
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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 1552
Location: Oklahoma
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| Posted: Feb 06, 2019 15:06 Post subject: Re: Collection of Michael Shaw |
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| Mineral: | Elbaite |
| Locality: | | Chhappu, Shigar District, Gilgit-Baltistan (Northern Areas), Pakistan | |
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| Dimensions: | 2.5 x 6.6 cm |
| Description: |
| Parallel growth of green elbaite crystals that have a pronounced “cats eye” effect. |
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| Viewed: |
4703 Time(s) |
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