Amethyst with Calcite Overgrowth
Collection
John Betts - Fine Minerals
Description
Plate of deep-purple Amethyst crystals up to 14 mm long with partial
overgrowth of white Calcite microcrystals on oriented faces (the calcite
is all on faces facing the same direction). Ex. Robert C. Linck (1905-1970).
Locality
Guanajuato, Mexico
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