Anhydrite and Gahnospinel Physical Properties

Anhydrite

Gahnospinel

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Physical Properties

Tenacity

Brittle

Solubility

Durability

Specific Gravity

2.90-2.983.65-4.55

1 7.18

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Fracture

Conchoidal

Cleavage

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

None, but may exhibit slight parting

Mohs Hardness

3.57.5-8

2 10

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Chemical Composition

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

(Mg,Zn)Al 2O 4Gemdat.org , Management Team (2012)

Anhydrite and Gahnospinel Chemical Formula

While comparing Anhydrite and Gahnospinel 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 Gahnospinel chemical formula.

Chemical formula of Anhydrite- CaSO 4Michael OâDonoghue , Gems, Sixth edition (2006) More from other references
Chemical formula of Gahnospinel- (Mg,Zn)Al 2O 4Gemdat.org , Management Team (2012)

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Anhydrite and Gahnospinel Specific Gravity

Another important criteria for qualitative analysis of gemstones is Anhydrite and Gahnospinel Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Anhydrite and Gahnospinel Optical Properties during the identification of gemstone. Specific gravity of Anhydrite is 3.65-4.55 whereas that of Gahnospinel is 3.65-4.55.