Peridot and Andradite Garnet Physical Properties

Peridot

Andradite Garnet

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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

1.54-1.553.8-3.9

1 7.18

1.5 Fracture

Conchoidal

Not Available

1.6 Cleavage

Poor

None

1.7 Mohs Hardness

6.5-76.5-7.5

2 10

1.8 Chemical Composition

(Mg,Fe)₂SiO₄

Ca₃Fe³⁺₂Si₃O₁₂

Peridot and Andradite Garnet Chemical Formula

While comparing Peridot and Andradite Garnet 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 Andradite Garnet chemical formula.

Chemical formula of Peridot- (Mg,Fe)₂SiO₄
Chemical formula of Andradite Garnet- Ca₃Fe³⁺₂Si₃O₁₂

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Peridot and Andradite Garnet Specific Gravity

Another important criteria for qualitative analysis of gemstones is Peridot and Andradite Garnet Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Peridot and Andradite Garnet Optical Properties during the identification of gemstone. Specific gravity of Peridot is 3.8-3.9 whereas that of Andradite Garnet is 3.8-3.9.