Peridot and Rock Crystal Physical Properties

Peridot

Rock Crystal

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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

1.54-1.552.65

1 7.18

1.5 Fracture

Conchoidal

ConchoidalWalter Schumann, Gemstones of the world (2001), ConchoidalWalter Schumann, Gemstones of the world (2001)

1.6 Cleavage

Poor

Not Available

1.7 Mohs Hardness

6.5-77

2 10

1.8 Chemical Composition

(Mg,Fe)₂SiO₄

SiO 2Walter Schumann , Gemstones of the world (2001)

Peridot and Rock Crystal Chemical Formula

While comparing Peridot and Rock Crystal 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 Rock Crystal chemical formula.

Chemical formula of Peridot- (Mg,Fe)₂SiO₄
Chemical formula of Rock Crystal- SiO 2Walter Schumann , Gemstones of the world (2001)

Compare Semi Precious Gemstones

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Peridot Vs Citrine

Peridot Vs Hackmanite

Peridot and Rock Crystal Specific Gravity

Another important criteria for qualitative analysis of gemstones is Peridot and Rock Crystal Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Peridot and Rock Crystal Optical Properties during the identification of gemstone. Specific gravity of Peridot is 2.65 whereas that of Rock Crystal is 2.65.