Fluorite with Cassiterite

specimen number:
3774188

location:
Zinnwald, Bohemia, Czech Republic

description:
Nice combination thumbnail specimen from this old classic locality was sharp twinned black crystals of cassiterite measuring to 0.5 cm in size on matrix with small gemmy dark purple cubic crystals of fluorite to 0.3 cm. This comes with a photocopy of an old label. Said to have been collected prior to 1880 and from the John Cummings collection, Woburn Public Library, Woburn, Massachusetts.

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