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This is a fascinating specimen that is most difficult to adequately capture due to its glassiness. It is a series of very sharp cubes whose origination point was green which travels about a third of the way up. What I originally thought was crazing are actually dendritic-leafy inclusions of an unknown mineral. In areas they look like silver , though I doubt it is actually silver. To top it off the piece is a complete floater. Very unusual. Ex Martin Zinn collection (with label).

Locality: Naica, Chihuahua Mexico

Composition: Calcium Fluoride


Dimensions: 7 × 5.6 × 5.2 cm
SKU: Geo-3360 Categories: , ,
Dimensions: 7 × 5.6 × 5.2 cm