Peridot and Gaylussite Physical Properties

Peridot

Gaylussite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

decomposes in water

1.3 Durability

Not Available

1.4 Specific Gravity

1.54-1.551.93-1.99

1 7.18

1.5 Fracture

Conchoidal

Conchoidal, Conchoidal, Brittle

1.6 Cleavage

Poor

perfect [110]

1.7 Mohs Hardness

6.5-72.5

2 10

1.8 Chemical Composition

(Mg,Fe)₂SiO₄

Na2Ca(CO3)2•5(H2O)

Peridot and Gaylussite Chemical Formula

While comparing Peridot and Gaylussite 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 Gaylussite chemical formula.

Chemical formula of Peridot- (Mg,Fe)₂SiO₄
Chemical formula of Gaylussite- Na2Ca(CO3)2•5(H2O)

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Peridot and Gaylussite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Peridot and Gaylussite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Peridot and Gaylussite Optical Properties during the identification of gemstone. Specific gravity of Peridot is 1.93-1.99 whereas that of Gaylussite is 1.93-1.99.