BIOTITE MICA - CORNWALL
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Lustrous sheaves of biotite mica
This quarry in Cornwall was well known for the biotite mica that occurred in the coarsely-crystalline pegmatite. The quarry has now been infilled.
Lustrous sheaves of biotite mica
Trelavour Downs, St. Dennis,
Near St. Austell, CornwallThis quarry in Cornwall was well known for the biotite mica that occurred in the coarsely-crystalline pegmatite. The quarry has now been infilled.
Size: 11 x 6 x 5 centimetres
Weight: 456 grams
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