Shigaite and Peridot Physical Properties

Shigaite

Peridot

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1 Physical Properties

1.1 Tenacity

Moderately ﬂexible

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.321.54-1.55

1 7.18

1.5 Fracture

Flexible Flexible fragments.

Conchoidal

1.6 Cleavage

Perfect on {0001}

Poor

1.7 Mohs Hardness

26.5-7

2 10

1.8 Chemical Composition

Not Available

(Mg,Fe)₂SiO₄

Shigaite and Peridot Chemical Formula

While comparing Shigaite and Peridot 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 Shigaite and Peridot chemical formula.

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

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Shigaite and Peridot Specific Gravity

Another important criteria for qualitative analysis of gemstones is Shigaite and Peridot Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Shigaite and Peridot Optical Properties during the identification of gemstone. Specific gravity of Shigaite is 1.54-1.55 whereas that of Peridot is 1.54-1.55.