General Information:
Chemical Formula:
(Ba,Ca,K,Na)x[(V,Al)4P2(O,OH)16]·12(H2O) x~0.66
Environment:
Meade Peak Member of the Premian Phosphoria Formation in phosphatic organic-matter-rich mudstone..
IMA Status:
Approved IMA 1996
Locality:
Monsanto's Enoch Valley mine, Soda Springs, Idaho, USA.
Name Origin:
Named after its composition of phosphate and the vanadyl (V++++O2)-- group.
Physical Properties:
Color:
light greenish blue.
Density:
2.16
Diaphaniety:
Transparent
Habits:
Crystalline - Fine - Occurs as well-formed fine sized crystals., Blocky - Crystal shape tends to be equant (e.g. feldspars)., Encrustations - Forms crust-like aggregates on matrix.
Luster:
Vitreous (Glassy)
Streak:
very pale greenish blue
More details...