Forsterite and Anhydrite Physical Properties

Forsterite

Anhydrite

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Physical Properties

Tenacity

Brittle

Solubility

Durability

Specific Gravity

3.23-3.262.90-2.98

1 7.18

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Fracture

Conchoidal

Cleavage

Perfect on {010} imperfect on {100}

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

Mohs Hardness

6.5-73.5

2 10

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Chemical Composition

Mg 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006)

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

Forsterite and Anhydrite Chemical Formula

While comparing Forsterite 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 Forsterite and Anhydrite chemical formula.

Chemical formula of Forsterite- Mg 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Anhydrite- CaSO 4Michael OâDonoghue , Gems, Sixth edition (2006) More from other references

Compare Green Gemstones

Forsterite Vs Grossular

Forsterite Vs Hayne

Forsterite Vs Hemimorphite

Forsterite and Anhydrite Specific Gravity

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