Cyanotrichite Needles
Collection
John Betts - Fine Minerals
Description
Bright blue Cyanotrichite crystals on Limonite gossan matrix. Optical data for this rare mineral was first obtained from this old locality (closed in 1913) and can be considered the type locality.
Locality
Grandview Mine, Coconino County, Arizona
Dimensions
25 x 20 x 10 mm.
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