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Baghdadite : Ca3(Zr,Ti)[O2|Si2O7], Perovskite : CaTiO3 | |
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Fuka mine, Bitchu-cho (Bicchu-cho), Takahashi, Okayama Prefecture, Chugoku Region, Honshu Island, Japan A 1 cm aggregate of prismatic, greyish crystals of Baghdadite with a black crystal of Perovskite in matrix from the Fuka mine, Okayama, Japan. Specimen and photo: Knut Eldjarn. |
| © Knut Eldjarn | Photo ID: 91297 View Count: 590 |
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Fuka mine, Bitchu-cho (Bicchu-cho), Takahashi, Okayama Prefecture, Chugoku Region, Honshu Island, Japan A small, 0.01 cm, grain of baghdadite, fluorescing in response to SW-UV illumination. Child photo is the same with visible light. S405-028F Excalibur Mineral specimen. |
| © 2008, JGW | Photo ID: 157673 View Count: 137 |
Baghdadite : Ca3(Zr,Ti)[O2|Si2O7], Spurrite : Ca5[CO3|(SiO4)2] | |
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Fuka mine, Bitchu-cho (Bicchu-cho), Takahashi, Okayama Prefecture, Chugoku Region, Honshu Island, Japan 0.03 cm translucent grain of baghdadite in spurrite. Excalibur Mineral specimen. S357-02 |
| © 2008, JGW | Photo ID: 155096 View Count: 130 |
Bicchulite : Ca2[(OH)2|Al2SiO6], Grossular-Hibschite Series | |
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Fuka mine, Bitchu-cho (Bicchu-cho), Takahashi, Okayama Prefecture, Chugoku Region, Honshu Island, Japan Bicchulite, intermixed with hydrogrossular, as pseudomorphs after gehlinite crystals, to 0.8 cm. S355-18 Alfredo Petrov specimen. |
| © 2008, JGW | Photo ID: 155099 View Count: 220 |
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Fuka mine, Bitchu-cho (Bicchu-cho), Takahashi, Okayama Prefecture, Chugoku Region, Honshu Island, Japan 8.5 x 7.3 x 3.9 cm. Bicchulite is a very rare calcium silicate and this very rich and showy specimen is from the Type Locality - the Fuka Mine of Japan. Sharp, gray, rectangular crystals to 4 mm of bicchulite pseudomorphs after gehlenite crystals richly cover the quartz-rich matrix on this specimen. Gehlenite is also a very rare calcium silicate. ... |
| © Rob Lavinsky | Photo ID: 242595 View Count: 32 |
Corundum : Al2O3 | |
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Shokozan mine (Yano-Shokozan mine), Hiroshima Prefecture, Chugoku Region, Honshu Island, Japan Blue granular corundum in diaspore with pyrophyllite. 4 cm sample. S358-27 Alfredo Petrov specimen. |
| © 2008, JGW | Photo ID: 155244 View Count: 74 |
Corundum : Al2O3 | |
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Shokozan mine (Yano-Shokozan mine), Hiroshima Prefecture, Chugoku Region, Honshu Island, Japan Blue granular corundum, also tan colored, in pyrophyllite rich rock. 5 cm sample. S358-28 Excalibur Mineral specimen. |
| © 2008, JGW | Photo ID: 155245 View Count: 59 |
Cuprotungstite : Cu2[(OH)2|WO4], Scheelite : Ca[WO4] | |
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Ofuku mine (Yamato mine), Mine city, Yamaguchi Prefecture, Chugoku Region, Honshu Island, Japan Pistachio green colored cuprotungstite, altering from dark green scheelite, on limonitic matrix. About a 1 cm field of view. S324-06 Excalibur Mineral specimen. |
| © 2008, JGW | Photo ID: 150867 View Count: 91 |
Cuprotungstite : Cu2[(OH)2|WO4] | |
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Yamagami mine, Mine City, Yamaguchi Prefecture, Chugoku Region, Honshu Island, Japan 9.5mm green massive cuprotungstite replacing a scheelite crystal. |
| © Alfredo Petrov | Photo ID: 216217 View Count: 53 |
Diaspore : AlO(OH), Pyrophyllite : Al2Si4O10(OH)2 | |
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Shokozan mine (Yano-Shokozan mine), Hiroshima Prefecture, Chugoku Region, Honshu Island, Japan Spherical nodule of diaspore and pyrophyllite from old Japanese locality. Fully formed on all sides - no damage. Ex. Reasenberg collection 2613. Overall size of mineral specimen: 6x6x5 cm. Size of individual crystals: . |
| © 2002 John H. Betts | Photo ID: 6737 View Count: 593 |
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