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Cassiterite, Quartz


Cassiterite : SnO2, Quartz : SiO2

Photo Copyright © Keith Compton  - This image is copyrighted. Unauthorized reproduction prohibited.
Locality: Wheal Coates, St Agnes, St Agnes District, Cornwall, England, UK
Dark grey-black fine grained Cassiterite pseudomorph of Carlsbad twin Orthoclase. Some minor milky Quartz associated.
Originally collected around 1830s
Overall size 24mm x 20mm x 9mm
Personal collection and photo.

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