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Anhydrite
Anhydrite

Charlesite
Charlesite



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Anhydrite
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Charlesite

Anhydrite and Charlesite Physical Properties

1 Physical Properties
1.1 Tenacity
Brittle
Brittle
1.2 Solubility
Not Available
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
2.90-2.98
1.79
1.5 Fracture
Conchoidal, Brittle, Conchoidal, UnevenArthur Thomas, Gemstones (2009), Brittle, Conchoidal
Irregular/uneven, Brittle, Metallic
1.6 Cleavage
Rare tabular and prismatic crystals. Usually occurs as fibrous, parallel veins that break off into cleavage fragments.
Perfect on {10bar10}
1.7 Mohs Hardness
3.5
2.5
1.8 Chemical Composition
CaSO 4Michael O’Donoghue , Gems, Sixth edition (2006) More from other references
Ca6(Al,Si)2(SO4)2B(OH)4(OH,O)12•26(H2O)

Anhydrite and Charlesite Chemical Formula

While comparing Anhydrite and Charlesite physical properties, the important data you should know is its chemical composition. Since chemical formula defines the molecular structure of the crystal, most of the physical properties like color, tenacity, solubility are governed by Anhydrite and Charlesite chemical formula.

  • Chemical formula of Anhydrite- CaSO 4Michael O’Donoghue , Gems, Sixth edition (2006) More from other references
  • Chemical formula of Charlesite- Ca6(Al,Si)2(SO4)2B(OH)4(OH,O)12•26(H2O)

Anhydrite and Charlesite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Anhydrite and Charlesite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Anhydrite and Charlesite Optical Properties during the identification of gemstone. Specific gravity of Anhydrite is 1.79 whereas that of Charlesite is 1.79.