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63ct wood tin

Photo Copyright © alfredo petrov  - This image is copyrighted. Unauthorized reproduction prohibited.
Gemstone: Wood Tin
Location of Origin:Macha area, Chayanta Province, Potosí, Bolivia
Origin:Natural
Treatments:None reported
Cut Type:Cabochon
Weight:63.5 cts.
Dimensions:23.6mm x 7.5mm x ?
Cut by:in Bolivia
Cryptocrystalline cassiterite of the "wood tin" variety, slightly over 63ct weight, cut by local artisans in Bolivia. Background colour is pinkish beige, with thin concentric red-brown agate-like lines. The thin red-brown lines are apparently a harder material, so the primitive polishing techniques leave the lines slightly elevated over the rest of the polished surface.


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