Tenacity
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
2.60-2.645.90-6.10
1
7.18
👆🏻
Fracture
Uneven, Splintery, Conchoidal
Conchoidal
Cleavage
Absent
{110} Distinct, {001} Indistinct, {100} Indistinct
Mohs Hardness
6.5-72.5-3
2
10
👆🏻
Chemical Composition
SiO 2Arthur Thomas , Gemstones (2009)
PbCrO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references