Call number:
Minerals from ex. USSR
A7
A7
Classification:
Minerals from ex. U.S.S.R. Collection
Name:
Topaz
Translated title:
Topaz
Place of origin:
ex. U.S.S.R
Depositional environment:
Pegmatites and high temperature quartz veins. Cavities in granites and rhyolites. Deposited by fluorine-rich vapors in rocks of rhyolite composition.
Description:
Pegmatites and high temperature quartz veins. Cavities in granites and rhyolites. Deposited by fluorine-rich vapors in rocks of rhyolite composition.
Chemical formula:
Al2SiO4(F,OH)2
Crystal system:
Orthorhombic
Crystal schema:
Dipyramidal
Persistent URL:
