Peridot and Sunstone Physical Properties

Peridot

Sunstone

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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

1.54-1.552.62-2.65

1 7.18

1.5 Fracture

Conchoidal

Gemstones of the world (2001)

1.6 Cleavage

Poor

001

1.7 Mohs Hardness

6.5-76

2 10

1.8 Chemical Composition

(Mg,Fe)₂SiO₄

Microcline: KAlSi₃O₈ Oligoclase: (Na,Ca)Al_1-2Si_3-2O₈

Peridot and Sunstone Chemical Formula

While comparing Peridot and Sunstone 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 Sunstone chemical formula.

Chemical formula of Peridot- (Mg,Fe)₂SiO₄
Chemical formula of Sunstone- Microcline: KAlSi₃O₈ Oligoclase: (Na,Ca)Al_1-2Si_3-2O₈

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Peridot and Sunstone Specific Gravity

Another important criteria for qualitative analysis of gemstones is Peridot and Sunstone Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Peridot and Sunstone Optical Properties during the identification of gemstone. Specific gravity of Peridot is 2.62-2.65 whereas that of Sunstone is 2.62-2.65.