Anhydrite and Humite Physical Properties

Anhydrite

Humite

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Physical Properties

Tenacity

Brittle

Solubility

Durability

Specific Gravity

2.90-2.983.20-3.32

1 7.18

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Fracture

Conchoidal

Uneven, Conchoidal

Cleavage

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

Poor

Mohs Hardness

3.56-6.5

2 10

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Chemical Composition

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

(Mg,Fe2+ ) 7(SiO 4) 3(F,OH) 2Anthony et al , Handbook of mineralogy (2001)

Anhydrite and Humite Chemical Formula

While comparing Anhydrite and Humite 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 Humite chemical formula.

Chemical formula of Anhydrite- CaSO 4Michael OâDonoghue , Gems, Sixth edition (2006) More from other references
Chemical formula of Humite- (Mg,Fe2+ ) 7(SiO 4) 3(F,OH) 2Anthony et al , Handbook of mineralogy (2001)

Compare Blue Gemstones

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Anhydrite and Humite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Anhydrite and Humite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Anhydrite and Humite Optical Properties during the identification of gemstone. Specific gravity of Anhydrite is 3.20-3.32 whereas that of Humite is 3.20-3.32.