Demantoid and Peridot Physical Properties

Demantoid

Peridot

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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

3.77-3.951.54-1.55

1 7.18

1.5 Fracture

Not Available

Conchoidal

1.6 Cleavage

Not Available

Poor

1.7 Mohs Hardness

6.56.5-7

2 10

1.8 Chemical Composition

Ca 3Fe 2(SiO 4) 3Ulrich Henn and Claudio C.

(Mg,Fe)₂SiO₄

Demantoid and Peridot Chemical Formula

While comparing Demantoid and Peridot 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 Demantoid and Peridot chemical formula.

Chemical formula of Demantoid- Ca 3Fe 2(SiO 4) 3Ulrich Henn and Claudio C.
Chemical formula of Peridot- (Mg,Fe)₂SiO₄

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Demantoid and Peridot Specific Gravity

Another important criteria for qualitative analysis of gemstones is Demantoid and Peridot Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Demantoid and Peridot Optical Properties during the identification of gemstone. Specific gravity of Demantoid is 1.54-1.55 whereas that of Peridot is 1.54-1.55.