AllMinerals/JohnBetts-FineMinerals > Online Mineral Museum Photographic Archive > Minerals from Russia > Diamond (10.35 carat large gray lamellar-twinned irregular uncut diamond)

Diamond (10.35 carat large gray lamellar-twinned irregular uncut diamond) from Sakha (Yakutia) Republic, Siberia, Russia

Photo below under longwave ultraviolet illumination:

DESCRIPTION:	No. 75553
Mineral:	Diamond (10.35 carat large gray lamellar-twinned irregular uncut diamond)
Locality:	Sakha (Yakutia) Republic, Siberia, Russia
Description:	Very large transparent gray natural uncut diamond with irregular crystal form with complex parallel surface patterns indicative of repeated lamellar twinning. A few dark subsurface inclusions are visible on one edge. The center of the diamond is clean. Internal zones fluoresce white under 365 nm LW UV illumination
Overall Size:	13x10.5x9 mm
Crystals:	13 mm
Archived:	For reference only

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