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Glaucophane : ◻[Na2][Mg3Al2]Si8O22(OH)2, Jadeite : Na(Al,Fe3+)Si2O6

Copyright © DSW 2010
 
 
minID: 8QX-7WJ

Glaucophane : ◻[Na2][Mg3Al2]Si8O22(OH)2, Jadeite : Na(Al,Fe3+)Si2O6

Copyright © DSW 2010  - This image is copyrighted. Unauthorized reproduction prohibited.
Dimensions: 4 cm x 3.2 cm x 3 cm

A sample consisting mostly of rough, pale greenish-white needles of crystallized jadeite with well-defined, radiating sprays of indigo glaucophane to 8mm. Previously in the collection of (and presumably collected by) Ed Oyler, with his handwritten note on a slip of paper; he notes the jadeite crystals are "not beautiful, but very rare."

4.0 x 3.2 x 3.0 cm

Note that there are several localities around the Valley Ford area listed in MinDat, but I have been unable to narrow it down to anything more specific.

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Photo added: 3rd Jan 2011