Tetrahedrite with Bournonite
Collection
John Betts - Fine Minerals
Description
Large plate covered with Bournonite crystals up to 5 mm on irregular crystals of Tetrahedrite with scattered milky Quartz crystals. The Bournonite crystals show distinct striations on the crystal faces due to complex twinning. The Herodsfoot Mine is the type locality for Tetrahedrite.
Locality
Herodsfoot Mine, Liskeard, Cornwall, England
Dimensions
10 x 7 x 4 cm.
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