Mineralpedia Details for Pellyite

Pellyite

Formula: Ba₂CaFe²⁺₂Si₆O₁₇
Crystal System: Orthorhombic
Crystal Habit: Massive
Cleavage: Indistinct, Indistinct, None
Luster: Vitreous (Glassy)
Color: colorless, light yellow
Streak: white
Class: Orthorhombic - Dipyramidal
Fracture: Conchoidal
Hardness: 6
WebMineral: View Pellyite
Mindat: View Pellyite

Pellyite from Esquire #8 claim, Big Creek, Fresno Co., California, United States

Pellyite, like the other minerals of Big Creek occur in metamorphic skarns containing barium in thin lenses and veins much like this specimen. The Pellyite here is 1cm thick. In the matrix is also Sanbornite, Gillespite, and sulfides, namely Pyrrhotite.