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Topaz : Al2(SiO4)(F,OH)2

Copyright © Andrew Tuma
 
 
 
minID: A90-F6F

Topaz : Al2(SiO4)(F,OH)2

Copyright © Andrew Tuma  - This image is copyrighted. Unauthorized reproduction prohibited.

A 23mm high crystal of Topaz with included cassiterite crystals. Specimen and photograph A. Tuma, N-D60.105m.

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Photo added: 22nd Nov 2009

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