Peridot and Iddingsite Physical Properties

Peridot

Iddingsite

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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

1.54-1.552.5-2.8

1 7.18

1.5 Fracture

Conchoidal

Not Available

1.6 Cleavage

Poor

{???} Perfect

1.7 Mohs Hardness

6.5-73

2 10

1.8 Chemical Composition

(Mg,Fe)₂SiO₄

MgO.Fe2O3.3SiO2•4(H2O)

Peridot and Iddingsite Chemical Formula

While comparing Peridot and Iddingsite 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 Iddingsite chemical formula.

Chemical formula of Peridot- (Mg,Fe)₂SiO₄
Chemical formula of Iddingsite- MgO.Fe2O3.3SiO2•4(H2O)

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Peridot and Iddingsite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Peridot and Iddingsite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Peridot and Iddingsite Optical Properties during the identification of gemstone. Specific gravity of Peridot is 2.5-2.8 whereas that of Iddingsite is 2.5-2.8.