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Tobi
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Joined: 07 Apr 2009
Posts: 4248
Location: Germany



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Posted: Oct 26, 2014 07:33 Post subject: Re: Collection of Tobi |
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New galena:
Mineral: | Galena, calcite |
Locality: | Naica Mine, Naica, Municipio Saucillo, Chihuahua, Mexico |  |
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Dimensions: | 60 mm x 50 mm x 30 mm, largest galena 15 mm |
Description: |
Galena crystals up to 1,5 cm associated with small calcite crystals on matrix. From Naica Mine in Mexico. Specimen size 6 cm. |
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Tobi
Site Admin

Joined: 07 Apr 2009
Posts: 4248
Location: Germany



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Posted: Oct 26, 2014 08:02 Post subject: Re: Collection of Tobi |
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New fluorite:
Mineral: | Fluorite with Calcite |
Locality: | Shangbao Mine, Leiyang, Hengyang Prefecture, Hunan Province, China |  |
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Dimensions: | 105 mm x 100 mm x 30 mm, largest fluorite 20 mm |
Description: |
Pale green fluorite crystals up to 2 cm together with calcite on matrix. From Shangbao Mine in China. Specimen size 10,5 cm. |
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Tobi
Site Admin

Joined: 07 Apr 2009
Posts: 4248
Location: Germany



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Posted: Oct 26, 2014 08:37 Post subject: Re: Collection of Tobi |
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New calcite:
Mineral: | Calcite on Sphalerite |
Locality: | Elmwood Mine, Carthage, Central Tennessee Ba-F-Pb-Zn District, Smith County, Tennessee, USA |  |
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Dimensions: | 70 mm x 60 mm x 30 mm, calcite measures 55 mm |
Description: |
Beautiful golden scalenohedron (5,5 cm) on dark sphalerite matrix. From Elmwood Mine in Tennessee. Specimen height 7 cm. |
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Tobi
Site Admin

Joined: 07 Apr 2009
Posts: 4248
Location: Germany



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Posted: Oct 30, 2014 11:59 Post subject: Re: Collection of Tobi |
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A small package of Swiss alpine quartzes:
All of them completely transparent, especially the small one from Val Giuv - you can completely look through and even see objects in the distance as if you'd look through a window.
Mineral: | Smoky quartz |
Locality: | Switzerland |  |
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Dimensions: | Smallest one 5, largest one 7 cm |
Description: |
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Tobi
Site Admin

Joined: 07 Apr 2009
Posts: 4248
Location: Germany



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Posted: Nov 02, 2014 07:19 Post subject: Re: Collection of Tobi |
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A small bute nice calcite specimen from Saxony:
Mineral: | Calcite on ankerite |
Locality: | Bösenbrunn, Oelsnitz, Vogtlandkreis, Saxony/Sachsen, Germany |  |
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Dimensions: | Specimen size 3,5 cm, crystal 13 mm |
Description: |
Pale yellow calcite ("Kanonenspat" shape) on brown ankerite. From Bösenbrunn, Thuringia, Germany. Specimen size 3,5 cm. |
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GneissWare

Joined: 07 Mar 2008
Posts: 1287
Location: California



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Posted: Nov 02, 2014 08:22 Post subject: Re: Collection of Tobi |
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Tobi wrote: | A small but nice calcite specimen from Saxony: |
Very nice Calcite
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Jamison Brizendine
Joined: 27 Feb 2014
Posts: 128
Location: Northeast Ohio



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Posted: Nov 14, 2014 13:29 Post subject: Re: Collection of Tobi |
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What a cute collection of smoky quartz crystals from Switzerland (SmokyQuartzes.JPG, pg. 29). The idea of making collages of specimens is very cool and I wish they would do this in mineralogy textbooks to show differences in minerals and localities.
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Tobi
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Joined: 07 Apr 2009
Posts: 4248
Location: Germany



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Posted: Nov 15, 2014 05:04 Post subject: Re: Collection of Tobi |
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Hi Jamison,
You're right: Such collage arrangements sometimes can be good to show differences, that's why I got this idea when I wanted to show those Swiss crystals. But there ARE some mineralogical textbooks where these types of photos are used, at least in older books where this was the typical way to show specimens ...
Tobi
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Tobi
Site Admin

Joined: 07 Apr 2009
Posts: 4248
Location: Germany



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Posted: Dec 06, 2014 10:23 Post subject: Re: Collection of Tobi |
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Spessartine from Tanzania:
Mineral: | Spessartine |
Locality: | Sangulungulu Hill (Nani Hill), Naan village, Loliondo, Ngorongoro District, Arusha Region, Tanzania |  |
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Dimensions: | Specimen size 5 cm, each crystal measures 1 cm |
Description: |
Two perfect orange spessartine crystals (each one measures 1 cm) on schist matrix. From Nani Hill in Tanzania, specimen size 5 cm. |
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Mineral: | Spessartine |
Locality: | Sangulungulu Hill (Nani Hill), Naan village, Loliondo, Ngorongoro District, Arusha Region, Tanzania |  |
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Dimensions: | Specimen size 5 cm, each crystal measures 1 cm |
Description: |
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Michael Shaw
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Joined: 30 Apr 2008
Posts: 2250
Location: Oklahoma



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Posted: Dec 06, 2014 10:45 Post subject: Re: Collection of Tobi |
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Hi Tobi,
In general, I am not a fan of the spessartines from Loliondo, but I like your specimen a lot because of the sharp crystals placed aesthetically on matrix. Congratulations.
Michael
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Tobi
Site Admin

Joined: 07 Apr 2009
Posts: 4248
Location: Germany



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Posted: Dec 06, 2014 10:56 Post subject: Re: Collection of Tobi |
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Thanks Michael, I also fell immediately in love with it :)
Quartz from Huanggang:
There are some kinds of hollow casts of a rhombohedral mineral (calcite, siderite, ankerite, dolomite?) at the backside of the specimen. I will take some detail photos during the next days, maybe one of you has an idea what it could be ...
Mineral: | Quartz |
Locality: | Huanggang Mines, Hexigten Banner (Kèshíkèténg Qí), Chifeng (Ulanhad), Inner Mongolia Autonomous Region, China |  |
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Dimensions: | Specimen height 11 cm |
Description: |
Quartz cluster from the giant deposits of Huanggang in China, specimen height 11 cm. |
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Tobi
Site Admin

Joined: 07 Apr 2009
Posts: 4248
Location: Germany



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Posted: Dec 06, 2014 11:08 Post subject: Re: Collection of Tobi |
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Rhodochrosite from Peru:
(Though my forum avatar shows a nice specimen from Uchucchacua Mine, this new acquisiton is much better)
Mineral: | Rhodochrosite |
Locality: | Uchucchacua Mine, Oyón Province, Lima Department, Peru |  |
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Dimensions: | Specimen height 3,5 cm, largest crystal 14 mm |
Description: |
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Tobi
Site Admin

Joined: 07 Apr 2009
Posts: 4248
Location: Germany



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Posted: Dec 06, 2014 11:18 Post subject: Re: Collection of Tobi |
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Amethyst from Mexico:
Mineral: | Amethyst |
Locality: | Amatitlán, Municipio Eduardo Neri, Guerrero, Mexico |  |
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Dimensions: | Specimen size 4,5 cm, largest crystal 2,5 cm |
Description: |
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Carles Millan
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Joined: 05 May 2007
Posts: 1536
Location: Catalonia



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Posted: Dec 06, 2014 12:34 Post subject: Re: Collection of Tobi |
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Tobi wrote: | Amethyst from Mexico: |
What a nice group of pieces! You're learning very quickly, not only how to select new specimens but how to shoot them too. Congrats!
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Vitaliy
Joined: 30 Nov 2014
Posts: 52


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Posted: Dec 06, 2014 12:45 Post subject: Re: Collection of Tobi |
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Tobi do you have any self-collected minerals you could also showcase? It seems that most of the specimens displayed are acquired.
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