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Tobi
Site Admin
Joined: 07 Apr 2009
Posts: 4248
Location: Germany
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 Posted: Apr 10, 2024 05:34 Post subject: Re: The Mizunaka Collection |
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Mike, this is a Blue Cap from California that combines the legendary beauty of these classic elbaites with an uncommon form.
Any idea why this one grew so extremely flat and short-prismatic? It looks like the Cap was separated from a "normal" long-prismatic crystal during growth and then re-crystallized as such a thick elbaite. I'm not good at crystallography, I only know that tourmalines rather tend to grow long-prismatic, so I got curious why this one developed as such a chubby beauty :-)
However, this tourmaline is both beautiful AND unique!
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am mizunaka
Joined: 09 Apr 2010
Posts: 2208
Location: USA
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| Posted: Apr 10, 2024 14:59 Post subject: Re: The Mizunaka Collection - Elbaite |
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| Tobi wrote: | Mike, this is a Blue Cap from California that combines the legendary beauty of these classic elbaites with an uncommon form.
Any idea why this one grew so extremely flat and short-prismatic? It looks like the Cap was separated from a "normal" long-prismatic crystal during growth and then re-crystallized as such a thick elbaite. I'm not good at crystallography, I only know that tourmalines rather tend to grow long-prismatic, so I got curious why this one developed as such a chubby beauty :-)
However, this tourmaline is both beautiful AND unique! |
Thanks Tobi! I would think that you are correct in assuming that the cap separated and recrystallized as a thick wafer form.
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am mizunaka
Joined: 09 Apr 2010
Posts: 2208
Location: USA
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| Posted: Apr 12, 2024 15:37 Post subject: The Mizunaka Collection - Beryl |
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| Mineral: | Beryl |
| Locality: | | Golconda pegmatite, Governador Valadares, Vale do Rio Doce, Minas Gerais, Brazil |  |
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| Dimensions: | 4.7 x 3.4 cm |
| Description: |
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| Viewed: |
6474 Time(s) |
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| Mineral: | Beryl |
| Locality: | | Golconda pegmatite, Governador Valadares, Vale do Rio Doce, Minas Gerais, Brazil | |
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| Dimensions: | 4.7 x 3.4 cm |
| Description: |
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| Viewed: |
6462 Time(s) |
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am mizunaka
Joined: 09 Apr 2010
Posts: 2208
Location: USA
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| Posted: Apr 15, 2024 02:42 Post subject: The Mizunaka Collection - Fluorite |
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| Mineral: | Fluorite, Ferberite, Arsenopyrite, Siderite |
| Locality: | | Minas da Panasqueira, level 1, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro, Portugal | |
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| Dimensions: | 11.0 x 9.0 cm |
| Description: |
| An unusually large fluorite for Panasqueira. Found in 2021 and was supposedly a small find of just three large specimens like this one. |
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6316 Time(s) |
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am mizunaka
Joined: 09 Apr 2010
Posts: 2208
Location: USA
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| Posted: Apr 18, 2024 01:38 Post subject: The Mizunaka Collection - Quartz |
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| Mineral: | Quartz, Fluorite |
| Locality: | | Huayllapon Mine (Huallapon Mine), Pasto Bueno, Pampas District, Pallasca Province, Ancash Department, Peru | |
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| Dimensions: | 6.9 x 3.9 cm |
| Description: |
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| Viewed: |
6028 Time(s) |
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am mizunaka
Joined: 09 Apr 2010
Posts: 2208
Location: USA
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| Posted: Apr 21, 2024 19:05 Post subject: The Mizunaka Collection - Fluorite |
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| Mineral: | Fluorite |
| Locality: | | Yindu, Hexigten Banner (Kèshíkèténg Qí), Chifeng (Ulanhad), Inner Mongolia Autonomous Region, China | |
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| Dimensions: | 8.7 x 3.3 cm |
| Description: |
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| Viewed: |
6777 Time(s) |
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am mizunaka
Joined: 09 Apr 2010
Posts: 2208
Location: USA
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| Posted: Apr 23, 2024 03:24 Post subject: The Mizunaka Collection - Quartz |
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| Mineral: | Quartz, Pyrite |
| Locality: | | Benchmark Quarry, St. Johnsville, Montgomery County, New York, USA | |
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| Dimensions: | 4.8 x 4.2 cm |
| Description: |
| Double terminated quartz crystal with pyrite inclusions. |
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| Viewed: |
6737 Time(s) |
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am mizunaka
Joined: 09 Apr 2010
Posts: 2208
Location: USA
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| Posted: Apr 26, 2024 01:07 Post subject: The Mizunaka Collection - Rhodochrosite |
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| Mineral: | Rhodochrosite, Quartz |
| Locality: | | Sankei Mine, Shimamaki-mura, Shimamaki District, Shiribeshi Subprefecture, Hokkaidō, Japan | |
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| Dimensions: | 12.5cm by 8.5cm |
| Description: |
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| Viewed: |
6614 Time(s) |
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| Mineral: | Rhodochrosite, Quartz |
| Locality: | | Sankei Mine, Shimamaki-mura, Shimamaki District, Shiribeshi Subprefecture, Hokkaidō, Japan | |
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| Description: |
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| Viewed: |
6615 Time(s) |
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am mizunaka
Joined: 09 Apr 2010
Posts: 2208
Location: USA
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| Posted: Apr 28, 2024 03:14 Post subject: Re: The Mizunaka Collection - Elbaite |
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| Mineral: | Elbaite |
| Locality: | | Pederneira claim, São José da Safira, Governador Valadares, Vale do Rio Doce, Minas Gerais, Brazil | |
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| Dimensions: | 5.2 x 1.4 cm |
| Description: |
| Elbaite grades from blues to a purple tinted termination. |
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| Viewed: |
6527 Time(s) |
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am mizunaka
Joined: 09 Apr 2010
Posts: 2208
Location: USA
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| Posted: Apr 30, 2024 22:45 Post subject: The Mizunaka Collection - Beryl |
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| Mineral: | Beryl (variety aquamarine), Quartz, Schorl, Topaz |
| Locality: | | Erongo Mountain, Usakos, Erongo Region, Namibia | |
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| Dimensions: | 6.1 x 4.5 cm |
| Description: |
| Pale smoky/citrine quartz with aquamarine, schorl, and topaz. |
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| Viewed: |
6421 Time(s) |
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Carles Millan
Site Admin
Joined: 05 May 2007
Posts: 1536
Location: Catalonia
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| Posted: May 01, 2024 05:49 Post subject: Re: The Mizunaka Collection |
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| Nice specimen. A great horizon and color combination.
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am mizunaka
Joined: 09 Apr 2010
Posts: 2208
Location: USA
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| Posted: May 01, 2024 14:51 Post subject: Re: The Mizunaka Collection - Beryl |
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| Carles Millan wrote: | | Nice specimen. A great horizon and color combination. |
Thanks Carles!
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am mizunaka
Joined: 09 Apr 2010
Posts: 2208
Location: USA
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| Posted: May 03, 2024 01:52 Post subject: The Mizunaka Collection - Quartz |
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| Mineral: | Quartz |
| Locality: | | Travelers Rest, Greenville County, South Carolina, USA | |
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| Dimensions: | 13.3 x 6.0 x 2.0 cm |
| Description: |
| Generically referred to as "angle-plated quartz" in which the quartz has filled seams and preserved the gaps between some other mineral. This was labeled as quartz after aragonite though. |
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6239 Time(s) |
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am mizunaka
Joined: 09 Apr 2010
Posts: 2208
Location: USA
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| Posted: May 08, 2024 03:01 Post subject: The Mizunaka Collection - Rhodochrosite |
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| Mineral: | Rhodochrosite |
| Locality: | | Osarizawa Mine, Kazuno City, Akita Prefecture, Tohoku Region, Honshu Island, Japan | |
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| Dimensions: | 6.1 x 3.5 cm |
| Description: |
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| Viewed: |
5970 Time(s) |
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| Mineral: | Rhodochrosite |
| Locality: | | Osarizawa Mine, Kazuno City, Akita Prefecture, Tohoku Region, Honshu Island, Japan | |
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| Dimensions: | 6.1 x 3.5 cm |
| Description: |
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| Viewed: |
5992 Time(s) |
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am mizunaka
Joined: 09 Apr 2010
Posts: 2208
Location: USA
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| Posted: May 08, 2024 23:30 Post subject: The Mizunaka Collection - Fluorite |
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| Mineral: | Fluorite |
| Locality: | | Judith Lynn Claim (T & G Prospect), Pine Canyon deposit, West Burro Mountains, Burro Mountains District, Grant County, New Mexico, USA | |
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| Dimensions: | 6.8 x 5.7 cm |
| Description: |
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| Viewed: |
5892 Time(s) |
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