Radiating Thomsonite Hemispheres
Collection
John Betts - Fine Minerals
Description
Acicular white Thomsonite crystals in radiating hemispherical aggregates to 11 mm diameter lining a shallow cavity in basalt. The termination surfaces of the Thomsonite crystals have a yellowish color, but the edges reveal white crystals throughout. Ex. Miller collection ca. 1900.
Locality
Table Mountain, Golden, Jefferson County, Colorado
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