Peridot and Mottramite Physical Properties

Peridot

Mottramite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

Soluble

1.3 Durability

Not Available

1.4 Specific Gravity

1.54-1.555.9

1 7.18

1.5 Fracture

Conchoidal

Sub-Conchoidal, Brittle, Metallic

1.6 Cleavage

Poor

None observed

1.7 Mohs Hardness

6.5-73

2 10

1.8 Chemical Composition

(Mg,Fe)₂SiO₄

Not Available

Peridot and Mottramite Chemical Formula

While comparing Peridot and Mottramite 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 Mottramite chemical formula.

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

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Peridot and Mottramite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Peridot and Mottramite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Peridot and Mottramite Optical Properties during the identification of gemstone. Specific gravity of Peridot is 5.9 whereas that of Mottramite is 5.9.