Anhydrite and Staurolite Physical Properties

Anhydrite

Staurolite

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Physical Properties

Tenacity

Brittle

Solubility

Durability

Specific Gravity

2.90-2.983.7-3.8

1 7.18

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Fracture

Conchoidal

Subconchoidal, Conchoidal

Cleavage

Rare tabular and prismatic crystals. Usually occurs as fibrous, parallel veins that break off into cleavage fragments.

Distinct on {010}

Mohs Hardness

3.57-7.5

2 10

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Chemical Composition

CaSO 4Michael OâDonoghue , Gems, Sixth edition (2006) More from other references

(Fe,Mg,Zn) 2Al 9(Si,Al) 4O 22(OH) 2Ulrich Henn and Claudio C.

Anhydrite and Staurolite Chemical Formula

While comparing Anhydrite and Staurolite 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 Staurolite chemical formula.

Chemical formula of Anhydrite- CaSO 4Michael OâDonoghue , Gems, Sixth edition (2006) More from other references
Chemical formula of Staurolite- (Fe,Mg,Zn) 2Al 9(Si,Al) 4O 22(OH) 2Ulrich Henn and Claudio C.

Compare Blue Gemstones

Anhydrite Vs Aragonite

Anhydrite Vs Augelite

Anhydrite Vs Axinite

Anhydrite and Staurolite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Anhydrite and Staurolite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Anhydrite and Staurolite Optical Properties during the identification of gemstone. Specific gravity of Anhydrite is 3.7-3.8 whereas that of Staurolite is 3.7-3.8.