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RE61M5: Sharp crystals, brown with mauve shades, with an indeterminate amphibole that forms aggregates of acicular green crystals. We investigated the locality to document it more precisely but we haven’t found more details or similar comparative material, so we retain the name furnished by Folch documentation.
Mariposa County, California USA
Specimen size: 3.7 × 3 × 3.5 cm = 1.46” × 1.18” × 1.38”
Main crystal size: 3 × 1.4 cm = 1.18” × 0.55”
With handwritten note from the Folch Collection (duplicates)
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