1 Physical Properties
1.1 Tenacity
Not Available
Not Available
1.3 Solubility
Not Available
Not Available
1.6 Durability
Not Available
Not Available
1.7 Specific Gravity
Not Available1.98-2.50
1
7.18
1.13 Fracture
Conchoidal, Conchoidal, Gemstones of the world (2001)
Conchoidal, Conchoidal, Gemstones of the world (2001)
1.14 Cleavage
Not Available
Not Available
1.15 Mohs Hardness
1.16 Chemical Composition
SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001)
SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001)