Photo Copyright © Brian Kosnar - Mineral Classics  - This image is copyrighted. Unauthorized reproduction prohibited.
Gemstone: Sphalerite
Location of Origin:Big Four Mine, Heeney, Green Mountain Mining District, Summit Co., Colorado, USA
Treatments:None reported
Cut Type:Octagon
Weight:3.79 cts.
Dimensions:9.28mm x ?mm x ?mm
This cut is referred to as an "Octagon Brilliant"

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