mineral
Topaz
Al2SiO4(F,OH)2
AI-generated identification · may be incorrectHardness of 8 on the Mohs scale, typically colorless to yellow or blue, vitreous luster, and perfect basal cleavage.
Identified More mineral →
Explore Topaz in the encyclopedia →Identify your own rocks.
Get a report just like this from any photo, free.
Physical properties
Hardness of 8 on the Mohs scale, typically colorless to yellow or blue, vitreous luster, and perfect basal cleavage.
Formation & geological history
Forms in pegmatites and high-temperature hydrothermal veins, often associated with granitic rocks.
Uses & applications
Used widely in high-end jewelry and gemstone collection.
Geological facts
Topaz is one of the hardest naturally occurring minerals on Earth and can be heat-treated to alter its color.
Field identification & locations
Identified by its distinct conchoidal fracture, high specific gravity, and extreme hardness.
