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Kyanite

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Locality: Robinson Gulch pegmatite, Clear Creek pegmatite Province, Jefferson Co., Colorado, USA

An uncommon mineral for a pegmatite, this was verified to be kyanite by Cannon Microprobe. A previous XRD gave erroneousness metals, which must have been in the matrix. There is reference to an unidentified purpleish blue mineral containing iron and phosphate, so either there are 2 bluish minerals, or it was mis-identified back in the 1960's.
Dimensions of this fractured partial crystal are 1 mm x .25 mm.

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Photo added: 22nd Apr 2011

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Current server date and time: 20th May 2013 20:23:33