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Crystal of Calcite inside a natural corundum variety Ruby.
Darkfield, Nikon D300 on Zeiss STEMI 2000C.
- Author
- Paolo Cerruti - GEMCO Gemology Consulting
- Created on
- Thursday 5 April 2012
- Posted on
- Saturday 22 September 2018
- Dimensions
- 1920*1396
- File
- R%y%m%d1396%M%S_016.jpg
- Filesize
- 1066 KB
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