Anhydrite and Hemimorphite Physical Properties

Anhydrite

Hemimorphite

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Physical Properties

Tenacity

Brittle

Solubility

Soluble

Durability

Specific Gravity

2.90-2.983.30-3.50

1 7.18

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Fracture

Conchoidal

Uneven, ConchoidalWalter Schumann, Conchoidal

Cleavage

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

Perfect on {110}, poor on {101}, {001} rare

Mohs Hardness

3.55

2 10

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Chemical Composition

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

Zn 4Si 2O 7(OH) 2H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Anhydrite and Hemimorphite Chemical Formula

While comparing Anhydrite and Hemimorphite 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 Hemimorphite chemical formula.

Chemical formula of Anhydrite- CaSO 4Michael OâDonoghue , Gems, Sixth edition (2006) More from other references
Chemical formula of Hemimorphite- Zn 4Si 2O 7(OH) 2H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Compare Blue Gemstones

Anhydrite Vs Aragonite

Anhydrite Vs Augelite

Anhydrite Vs Axinite

Anhydrite and Hemimorphite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Anhydrite and Hemimorphite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Anhydrite and Hemimorphite Optical Properties during the identification of gemstone. Specific gravity of Anhydrite is 3.30-3.50 whereas that of Hemimorphite is 3.30-3.50.