Tenacity
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
3.352.9
1
7.18
👆🏻
Fracture
-
Fibrous
Cleavage
None
[010] Perfect, [100] Distinct, [011] Distinct
Mohs Hardness
5.52
2
10
👆🏻
Chemical Composition
(Mg,Fe) 2Si 2O 6Ulrich Henn and Claudio C.
Amethyst, Clear Quartz, Smoky Quartz, Cacoxenite, Rutile, Geothite, Lepidocrocite