Peridot and Anorthite Physical Properties

Peridot

Anorthite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

1.54-1.552.77

1 7.18

1.5 Fracture

Conchoidal

Uneven, Uneven, Gems, Sixth Edition (2006)

1.6 Cleavage

Poor

Perfect [001] good [010] poor [110]

1.7 Mohs Hardness

6.5-76-6.5

2 10

1.8 Chemical Composition

(Mg,Fe)₂SiO₄

CaAl 2Si 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)

Peridot and Anorthite Chemical Formula

While comparing Peridot and Anorthite 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 Peridot and Anorthite chemical formula.

Chemical formula of Peridot- (Mg,Fe)₂SiO₄
Chemical formula of Anorthite- CaAl 2Si 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)

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Peridot and Anorthite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Peridot and Anorthite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Peridot and Anorthite Optical Properties during the identification of gemstone. Specific gravity of Peridot is 2.77 whereas that of Anorthite is 2.77.