Description: Quartz Otome mining district, Miyamoto, Yamanashi Prefecture, Honshu, Japan 51.0 x 48.0 x 14.0 mm This excellent example of Japan-law twinned Quartz is from the Otome mining district which produced the specimens where this twinning was first described. This is a very transparent crystal measuring 51 x 48 x 14 mm, and has high glassy luster and well-developed striations. Only minor chipping. It is from the notable collections of Northland College (Ashland, Wisconsin), John Barlow and Gene la Berge.

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