Tenacity
Brittle
Brittle
Solubility
Soluble
-
Durability
-
-
Specific Gravity
4.3-55.00-5.30
1
7.18
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Fracture
Irregular/uneven
Uneven, ConchoidalWalter Schumann, Conchoidal
Cleavage
Perfect cleavage parallel to base and prism faces: {001} Perfect, {210} Perfect, {010} Imperfect
None, may show partings on {0001} and {10 1 1}
Mohs Hardness
3-3.56
2
10
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Chemical Composition
BaSO4
Fe 2O 3Arthur Thomas , Gemstones (2009)