Peridot and Thulite Physical Properties

Peridot

Thulite

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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

1.54-1.553.1

1 7.18

1.5 Fracture

Conchoidal

Uneven, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009)

1.6 Cleavage

Poor

Perfect {010} imperfect {100}

1.7 Mohs Hardness

6.5-76-7

2 10

1.8 Chemical Composition

(Mg,Fe)₂SiO₄

Ca₂Al₃(SiO₄)₃(OH)

Peridot and Thulite Chemical Formula

While comparing Peridot and Thulite 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 Thulite chemical formula.

Chemical formula of Peridot- (Mg,Fe)₂SiO₄
Chemical formula of Thulite- Ca₂Al₃(SiO₄)₃(OH)

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Peridot and Thulite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Peridot and Thulite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Peridot and Thulite Optical Properties during the identification of gemstone. Specific gravity of Peridot is 3.1 whereas that of Thulite is 3.1.