Images
Formula: Al11(PO4)9(OH)6.38H2O
Hydrated phosphate containing hydroxyl
Crystal System: Orthorhombic
Specific gravity: 1.93 to 1.99 measured, 1.935 calculated
Hardness: 2 to 3
Streak: White
Colour: White, light green, light yellow, light brown, colourless in transmitted light
Solubility: Readily soluble in acids
Environments
Vashegyite occurs associated with variscite,
apatite, wavellite and
evansite
(HOM, Webmin).
Localities
At Chvaletice, Pardubice District, Pardubice Region, Czech Republic, vashegyite occurs intimately mixed with
apatite and iron hydroxides
(Dana).
At the type locality, Železník (Vashegy), Sirk, Revúca District, Banská Bystrica Region, Slovakia, vashegyite
occurs in boxwork limonite in the oxidised zone of the
siderite-ankerite deposit.
Associated minerals include wavellite,
variscite and evansite
(Dana, HOM, Mindat, CM 21.489-498).
At the Gibellini Vanadium Project, Fish Creek Range, Gibellini Mining District, Eureka County, Nevada, USA,
vashegyite is associated with wavellite and
schoderite along fractures in
chert
(AM 47.637–648).
Near Manhattan, Manhattan Mining District, Toquima Range, Nye county, Nevada, USA, vashegyite occurs
in altered slate with variscite
(Dana).
Back to Minerals