Pottsite Locality: Linka Mine (Garnetite mine), Spencer Hot Springs District, Lander County , Nevada , USA ( Locality at mindat.org ) Size: 4.6 x 3.8 x 1.6 cm. This is a very rare hydrated lead, bismuth vanadate found in an oxide zone of a tungsten mine. This is the best and type locality for the species. The bright, mustard yellow microcrystals crystals are emplaced in a wide vein in matrix. Ex. Harold Urish Collection. — Photo: Robert M. Lavinsky · CC BY-SA 3.0
Pottsite
Pottsite is an IMA-recognized mineral species in the vanadate class, with the chemical formula (Pb₃Bi)Bi(VO₄)₄·H₂O.
It crystallizes in the tetragonal crystal system (space group I4_122). It is a member of the Pottsite structural group.
Key properties: Mohs hardness 3.5; specific gravity 7; Very pale yellow streak; Adamantine luster; optically uniaxial.
IMA symbol Pot, IMA status: approved, named in 1986.
Found in the oxidation zone of a tungsten-bearing tactite.
It is found associated with Scheelite, junoite, bismutite, clinobisvanite, duhamelite, cerussite, vanadinite.
The name refers to Potts, Nevada, USA, nearby the type locality.