Tenacity
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
5.90-6.102.82
1
7.18
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Fracture
Conchoidal
-
Cleavage
{110} Distinct, {001} Indistinct, {100} Indistinct
Perfect in one direction, indistinct in one direction
Mohs Hardness
2.5-36
2
10
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Chemical Composition
PbCrO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
K2Na(Ca,Mn)2Ti[O|Si7O18(OH)]