Physical Properties
Tenacity
Brittle
BrittleWalter Schumann
Solubility
insoluble
hot salt water
Durability
Not Available
Not Available
Specific Gravity
3.93-4.73
1.98-2.25
Fracture
Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009)
Conchoidal, Conchoidal, Gemstones of the world (2001) More from other references, Brittle
Cleavage
{110} and {111}
None
Mohs Hardness
7.5
5-6.5
Chemical Composition
ZrSiO4
SiO2 · nH2O
