Tenacity
-
Brittle
Solubility
-
Soluble
Durability
-
-
Specific Gravity
2.92.78
1
7.18
👆🏻
Fracture
Fibrous
Conchoidal
Cleavage
[010] Perfect, [100] Distinct, [011] Distinct
Perfect on {10 1 }; parting on {010}
Mohs Hardness
23.5
2
10
👆🏻
Chemical Composition
Amethyst, Clear Quartz, Smoky Quartz, Cacoxenite, Rutile, Geothite, Lepidocrocite
K2Ca2Mg(SO4)4·2H2O