Peridot and Variscite Physical Properties

Peridot

Variscite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

1.54-1.552.42-2.58

1 7.18

1.5 Fracture

Conchoidal

Conchoidal, Splintery, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Brittle

1.6 Cleavage

Poor

[010] perfect

1.7 Mohs Hardness

6.5-74-5

2 10

1.8 Chemical Composition

(Mg,Fe)₂SiO₄

AlPO₄ · 2(H₂O)

Peridot and Variscite Chemical Formula

While comparing Peridot and Variscite 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 Variscite chemical formula.

Chemical formula of Peridot- (Mg,Fe)₂SiO₄
Chemical formula of Variscite- AlPO₄ · 2(H₂O)

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Peridot and Variscite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Peridot and Variscite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Peridot and Variscite Optical Properties during the identification of gemstone. Specific gravity of Peridot is 2.42-2.58 whereas that of Variscite is 2.42-2.58.