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Cassiterite, Orthoclase, Quartz

Locality: Wheal Coates, St Agnes, St Agnes District, Cornwall, England, UK

Overall size: 17mm x 22mm x 10mm

Small cluster of fine grained, black Cassiterite after Orthoclase xls exhibiting Carlsbad twinning. No matrix although micro grains of Quartz are scattered over the specimen.

This photo has been shown 209 times

Photo added: 30th Jun 2012

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