Tenacity
-
Brittle
Solubility
-
Soluble
Durability
-
-
Specific Gravity
3.05-3.214.3-5
1
7.18
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Fracture
Uneven, Subconchoidal, Splintery
Irregular/uneven
Cleavage
Good on {110}, poor on {100}
Perfect cleavage parallel to base and prism faces: {001} Perfect, {210} Perfect, {010} Imperfect
Mohs Hardness
7.53-3.5
2
10
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Chemical Composition
Al 2SiO 5Michael OâDonoghue , Gems, Sixth edition (2006) More from other references
BaSO4