Peridot and Dallasite Physical Properties

Peridot

Dallasite

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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

1.54-1.552.58-2.91

1 7.18

1.5 Fracture

Conchoidal

Not Available

1.6 Cleavage

Poor

Not Available

1.7 Mohs Hardness

6.5-76.5-7

2 10

1.8 Chemical Composition

(Mg,Fe)₂SiO₄

Not Available

Peridot and Dallasite Chemical Formula

While comparing Peridot and Dallasite 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 Dallasite chemical formula.

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

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Peridot and Dallasite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Peridot and Dallasite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Peridot and Dallasite Optical Properties during the identification of gemstone. Specific gravity of Peridot is 2.58-2.91 whereas that of Dallasite is 2.58-2.91.