Gypsum var. Selenite Desert Rose Sand Crystal Dollar, Fluorescent Diamantina quartz on feldspar matrix

on feldspar matrix

The heulandite fans share the trimmed-out pocket of volcanic basalt rock with clear fluorapophyllite crystals on gray chalcedony

natural crystal cluster with high-Mn calcite & quartz

or hairspray

They have a complex chemical composition that includes calcium

Gypsum var. Selenite Desert Rose Sand Crystal Dollar, Fluorescent Diamantina quartz on feldspar matrixSand included gypsum var. selenite desert rose crystal dollar coin. Fluorescent with 365nm long wave ultraviolet light. Size: 70 x 60 x 8 mm. 36 grams. Locale: Luderitz District, Karas Region, Namibia Fluorescent and phosphorescent (there is a glow that remains briefly after the UV light is removed) with long wave, mid wave and short wave ultraviolet light.