Locality: White Canyon No.1, Deer Flat, White Canyon, White Canyon District, San Juan Co., Utah, USA Dimensions: 4.9 cm x 2.3 cm x 1.4 cm Voglite and liebigite are rare secondary uranium minerals. Voglite is very rare and forms from the alteration of uraninite. This colorful, rich specimen features bright grass green voglite crystals attractively covering crusts of yellow liebigite on a sliver of coarse sandstone matrix. Ex. John White Collection of Seattle and acquired in October, 1968, according to his faded label. — Photo: Robert M. Lavinsky · CC BY-SA 3.0
Voglite
Voglite is an IMA-recognized mineral species in the carbonate class, with the chemical formula Ca₂Cu(UO₂)(CO₃)₄·6H₂O.
It crystallizes in the monoclinic crystal system.
Key properties: specific gravity 2.8; Pale green streak; Pearly on cleavages luster; optically biaxial.
IMA symbol Vgl, grandfathered status — known before the IMA’s founding, named in 1853.
A rare oxidation product of uraninite.
It is found associated with Liebigite, cuprosklodowskite, rösslerite, brassite, zellerite, uraninite (Jáchymov, Czech Republic).
The mineral was named to honor Josef Florian Vogl (1818–1896), Austrian mining officer and mineralogist, who studied the minerals of Jáchymov, Czech Republic and first described this species.