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Microcline (Var: Amazonite) : K[AlSi3O8] | |
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Tanakamiyama (Tanokamiyama), Otsu City, Shiga Prefecture, Kinki Region, Honshu Island, Japan 3.2 x 2.6 x 2.5 cm. This is a very rare Japanese specimen. Pretty much anything from Japan is now very hard to obtain, even the more common Japanese "classics" such as rhodochrosite or stibnite. Here is a very rare amazonite, the blue variety of microcline. The crystals are wonderfully sharp, and the overall form is pretty too. |
| © Rob Lavinsky | Photo ID: 211915 View Count: 44 |
Topaz : Al2[(F,OH)2|SiO4] | |
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Tanakamiyama (Tanokamiyama), Otsu City, Shiga Prefecture, Kinki Region, Honshu Island, Japan A cleavage of a topaz crystal showing numerous bubble inclusions. S322-17 1.2 cm field of view. Excalibur Mineral Company specimen. |
| © 2008, JGW | Photo ID: 152109 View Count: 103 |
Topaz : Al2[(F,OH)2|SiO4] | |
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Tanakamiyama (Tanokamiyama), Otsu City, Shiga Prefecture, Kinki Region, Honshu Island, Japan Sharp, colorless, water-clear crystal of topaz from a classic Japanese locality. The crystal faces are lustrous and selectively striated. The bottom of the crystal is cleaved from where it was attached to matrix; otherwise it is in excellent condtion. With a 19th century George English label; the address on the label dates it to 1893-1898. 2.9 x ... |
| © Edwards Minerals | Photo ID: 215300 View Count: 31 |
Topaz : Al2[(F,OH)2|SiO4] | |
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Tanakamiyama (Tanokamiyama), Otsu City, Shiga Prefecture, Kinki Region, Honshu Island, Japan Ex school of mine of Freiberg Size: 1,9 X 0,9 cm Collection and photo: Arliguie M |
| © Arliguie M | Photo ID: 239513 View Count: 17 |
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