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Anhydrite
Anhydrite

Pyrrhotite
Pyrrhotite



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Anhydrite
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Pyrrhotite

Anhydrite and Pyrrhotite Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
Brittle
-
-
2.90-2.98
Conchoidal
Rare tabular and prismatic crystals. Usually occurs as fibrous, parallel veins that break off into cleavage fragments.
3.5
CaSO 4Michael O’Donoghue , Gems, Sixth edition (2006) More from other references
 
-
Soluble
-
4.58-4.65
Uneven
Absent
3.5-4.5
Fe1-xS

Anhydrite and Pyrrhotite Chemical Formula

While comparing Anhydrite and Pyrrhotite 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 Pyrrhotite chemical formula.

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Anhydrite and Pyrrhotite Specific Gravity

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