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Otome mine (Mitake mine; Kurasawa mine), Yamanashi prefecture, Chubu region, Honshu Island, Japan

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Ferberite : FeWO4

Otome mine (Mitake mine; Kurasawa mine), Yamanashi prefecture, Chubu region, Honshu Island, Japan

Sharp black ferberite pseudomorphs after scheelite aka "Reinite". 3.8 x 2.2 x 2 cm
 © Kiyoshi KiikuniPhoto ID: 203279    View Count: 274

Ferberite : FeWO4

Otome mine (Mitake mine; Kurasawa mine), Yamanashi prefecture, Chubu region, Honshu Island, Japan

Ferberite replacing scheelite, with quartz.
4 cm sample. S324-31
Excalibur Mineral specimen.
 © 2008, JGWPhoto ID: 150878    View Count: 92

Izoklakeite : Pb27(Cu,Fe,Ag)2(Sb,Bi)19S57, Cosalite : Pb2Bi2S5

Otome mine (Mitake mine; Kurasawa mine), Yamanashi prefecture, Chubu region, Honshu Island, Japan

A fibrous mat of "giessenite", most likely bismuth-rich izoklakeite, with long cosalite crystals, all of which is on a fibrous support material. S276-25
0.7 cm field of view.
Excalibur Mineral specimen.
 © 2008, JGWPhoto ID: 159175    View Count: 138

Quartz : SiO2

Otomezaka deposit, Otome mine (Mitake mine; Kurasawa mine), Yamanashi Prefecture, Chubu Region, Honshu Island, Japan

10.1 x 8.3 x 2.8 cm. This piece, exchanged out of an old collection in the Paterson (New Jersey) museum, is unusual in that the two portions of the Japan Law twin are so asymmetric. The whole piece is a floater with no contact, though it has a little spot of damage on one edge, and also on the tip of the small 2 cm associated prismatic crystal. It ...
 © Rob LavinskyPhoto ID: 159834    View Count: 79

Quartz : SiO2

Otomezaka deposit, Otome mine (Mitake mine; Kurasawa mine), Yamanashi Prefecture, Chubu Region, Honshu Island, Japan

Quartz, Japan-law twin, Otomezaka deposit, Honshu Island. 3.6 x 2.7 x 1.1 cm.. Ex John Barlow Coll. K. Nash specimen and image.
Photo ID: 226165    View Count: 29

Scheelite : Ca[WO4]

Otome mine (Mitake mine; Kurasawa mine), Yamanashi prefecture, Chubu region, Honshu Island, Japan

Translucent. S337-34
2 cm sample.
Excalibur Mineral Company specimen.
 © 2008, J. WeissmanPhoto ID: 152104    View Count: 120
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