Mineralpedia Details for Nevadaite

Nevadaite

Named for the state of its discovery, Nevada, in the United States, with the type locality at the Gold Quarry mine near Carlin. Nevadaite has on other locality in Kyrgyzstan at Kara-Chagyr Mountain. It appears as pate green to turquoise blue prismatic crystals in radiating clusters, spherules, or druses in association with fluellite, wavellite, strengite, variscite, hewettite, anatase, kazakhstanite, tinticite, leucophosphite, torbernite, and tyuyamunite.

Ref. Cooper, M. A., et al. and The Canadian Mineralogist June 2004 v. 42 no. 3 p. 741-752

Formula: (Cu²⁺,[ ],Al,V³⁺)₆[Al₈(PO₄)₈F₈](OH)₂·22H₂O
Crystal System: Orthorhombic
Crystal Habit: Radial, Crystalline - Fine, Acicular
Cleavage: None, None, None
Luster: Vitreous (Glassy)
Color: pale green, turquoise
Streak: pale powder blue
Class: Orthorhombic - Disphenoidal
Fracture: Conchoidal
Hardness: 3
WebMineral: View Nevadaite
Mindat: View Nevadaite

Nevadaite from Gold Quarry mine, Eureka Co., Nevada, United States

Special Info: Type Locality

Robin's egg blue radiating acicular sprays to about 0.3mm.

Sky blue spherical crystals on siliceous matrix. This mineral, named after Nevada, where Gold Quarry mine is located, is found in only two localities worldwide.

Sky blue thin platy crystals in groups to 1mm on matrix with probably Fluellite.

Robin's egg blue radiating acicular sprays to about 0.3mm associated with deep red, acicular Hewetitte to 2mm.

Blue spherical and radiating crystal groups of this rare copper phosphate. Type Locality. Only two localities worldwide. In association are groups of rusty red Hewettite. Both minerals containing vanadium.