Cassiterite

$300.00

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A roughly 3 x 1.5 cm area of nicely crystallised Cassiterite crystals on a mid-grey killas matrix, from the St. Agnes mining district on the north Cornwall coast, due north of Redruth. The Cassiterite forms opaque black crystals with a bright metallic lustre and of up to 9 mm across. A good reference Cassiterite for the St. Agnes district.