Peridot and Diopside Physical Properties

Peridot

Diopside

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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

1.54-1.553.22-3.40

1 7.18

1.5 Fracture

Conchoidal

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

1.6 Cleavage

Poor

Distinct/good on {110}

1.7 Mohs Hardness

6.5-75-6

2 10

1.8 Chemical Composition

(Mg,Fe)₂SiO₄

CaMgSi₂O₆

Peridot and Diopside Chemical Formula

While comparing Peridot and Diopside 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 Diopside chemical formula.

Chemical formula of Peridot- (Mg,Fe)₂SiO₄
Chemical formula of Diopside- CaMgSi₂O₆

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Peridot and Diopside Specific Gravity

Another important criteria for qualitative analysis of gemstones is Peridot and Diopside Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Peridot and Diopside Optical Properties during the identification of gemstone. Specific gravity of Peridot is 3.22-3.40 whereas that of Diopside is 3.22-3.40.