AllMinerals/JohnBetts-FineMinerals > Online Mineral Museum Photographic Archive > Minerals from New Jersey > Datolite pseudomorphs after Anhydrite with Pyrite and Quartz var. Chalcedony

Datolite pseudomorphs after Anhydrite with Pyrite and Quartz var. Chalcedony from Millington Quarry, Bernards Township, Somerset County, New Jersey

Photo below under longwave ultraviolet illumination:

DESCRIPTION:	No. 78372
Mineral:	Datolite pseudomorphs after Anhydrite with Pyrite and Quartz var. Chalcedony
Locality:	Millington Quarry, Bernards Township, Somerset County, New Jersey
Description:	Lustrous translucent pale-green datolite pseudomorphs after bladed anhydrite crystals to 35 mm with overgrowth of many lustrous yellow-metallic cubic pyrite crystals to 1 mm and rare colorless chalcedony in rounded formations to 6 mm diameter. The chalcedony fluoresces orange under LW UV illumination. Collected 29 December 1996.
Overall Size:	4x2.5x2 cm
Crystals:	micro to 4 mm
Archived:	For reference only

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