AllMinerals/JohnBetts-FineMinerals > Online Mineral Museum Photographic Archive > Minerals from Oklahoma > Gypsum var. Selenite with internal zoning

Gypsum var. Selenite with internal zoning from Great Salt Plains, near Jet, Alfalfa County, Oklahoma

Photo below under shortwave ultraviolet illumination:

Photo below under longwave ultraviolet illumination:

DESCRIPTION:	No. 79258
Mineral:	Gypsum var. Selenite with internal zoning
Locality:	Great Salt Plains, near Jet, Alfalfa County, Oklahoma
Description:	Twinned selenite crystals, the colorless variety of the mineral species gypsum, with internal zones of brown clay inclusions. The main gypsum crystal has two small twinned crystals on front and rear. Fluoresces-phosphoresces under LW-SW UV illumination. Ex. Ara T. Dildilvan collection
Overall Size:	23x19x9 mm
Crystals:	6-23 mm
Archived:	For reference only

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