Hibonite and Anhydrite Physical Properties

Hibonite

Anhydrite

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Physical Properties

Tenacity

Brittle

Solubility

Durability

Specific Gravity

3.842.90-2.98

1 7.18

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Fracture

Subconchoidal, Conchoidal

Conchoidal

Cleavage

{0001} good, {10 1 0} parting

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

Mohs Hardness

7.5-83.5

2 10

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Chemical Composition

(Ca,Ce)(Al,Ti,Mg)12O19

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

Hibonite and Anhydrite Chemical Formula

While comparing Hibonite and Anhydrite 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 Hibonite and Anhydrite chemical formula.

Chemical formula of Hibonite- (Ca,Ce)(Al,Ti,Mg)12O19
Chemical formula of Anhydrite- CaSO 4Michael OâDonoghue , Gems, Sixth edition (2006) More from other references

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Hibonite and Anhydrite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Hibonite and Anhydrite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Hibonite and Anhydrite Optical Properties during the identification of gemstone. Specific gravity of Hibonite is 2.90-2.98 whereas that of Anhydrite is 2.90-2.98.