Bear Mountain Ranch occurrence, Copperopolis, Foothill Copper Belt, Calaveras County, California
Cabinet - 9.8 x 7.3 x 6.4 cm
382 grams
Specimen status: Reserved
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Veins of pearly talc in matrix. On one
specimen face the talc wraps around an opaque and white
partial crystal; this crystal has rhombohedral cleavage
but it is not calcite, as it is inert to dilute
hydrochloric acid and is harder than window glass. For the
moment it is 'identity unknown'.
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