Chalcophyllite
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The ArkenstoneFeatured
Chalcophyllite is an uncommon, hydrated copper, aluminum, sulfate arsenate and in the past, the only really great specimens for collectors have come from Cornwall and a few other small finds in history until now, with a surprise from China! A vuggy gray to white mottled Quartz matrix is chocked full of highly lustrous, green-blue crystals of Chalcophyllite, to 5 mm across. The crystals occur as intergrown, thin, hexagonal plates, intergrown aggregates and double-ended divergent sheaves. The piece looks great in hand specimen and even better under the loupe or microscope! The crystals have fabulous luster. This is from a single pocket find in a VERY rural, remote, old area of China. We found a few of them for sale at two China shows in the past, and then no more. AMAZING locality material for this species! So far as I know, this is one of the two best larger specimens. A shocking and unexpected find, for this rare copper mineral.
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