Calcite, Chalcopyrite, Sphalerite, Colorado UV (parallel)
Calcite, Chalcopyrite, Sphalerite, Colorado UV (cross)
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Calcite, Chalcopyrite, Sphalerite, Colorado UV (parallel)
Calcite, Chalcopyrite, Sphalerite, Colorado UV (cross)
Use your browser's zoom function to adjust picture size, usually Ctrl + and Ctrl - , or click picture for full size.