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November 21, 2014

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Sakuraiite, Sphalerite, Petrukite

Locality: Ikuno mine, Ikuno-cho-ono, Asago City, Hyogo Prefecture, Kinki Region, Honshu Island, Japan

Posted by: Chris Stanley

This specimen from the University Museum, Tokyo, Japan, is a part of type sakuraiite. Reflected plane polarized light digital image from transparency taken in oil immersion illustrating sakuraiite (grey with slightly green tint) compositionally zoned and intergrown with petrukite (greenish grey) with sphalerite (dark grey), chalcopyrite (yellow) and galena (off-white) from the Ikuno Mine, Japan. Compare with Figure 4 of Kissin and Owens (1989) in Canadian Mineralogist 27: 673-688. Characteristic reflectance data (and X-ray + microprobe) were obtained on this grain by C J Stanley & ...

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Copyright © Jolyon Ralph and Ida Chau 1993-2014. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them. Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of thousands of members and supporters. Mindat does not offer minerals for sale. If you would like to add information to improve the quality of our database, then click here to register.
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