Peridot and Anhydrite Physical Properties

Peridot

Anhydrite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

1.54-1.552.90-2.98

1 7.18

1.5 Fracture

Conchoidal

Conchoidal, Brittle, Conchoidal, UnevenArthur Thomas, Gemstones (2009), Brittle, Conchoidal

1.6 Cleavage

Poor

Rare tabular and prismatic crystals. Usually occurs as fibrous, parallel veins that break off into cleavage fragments.

1.7 Mohs Hardness

6.5-73.5

2 10

1.8 Chemical Composition

(Mg,Fe)₂SiO₄

CaSO 4Michael OâDonoghue , Gems, Sixth edition (2006) More from other references

Peridot and Anhydrite Chemical Formula

While comparing Peridot and Anhydrite 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 Anhydrite chemical formula.

Chemical formula of Peridot- (Mg,Fe)₂SiO₄
Chemical formula of Anhydrite- CaSO 4Michael OâDonoghue , Gems, Sixth edition (2006) More from other references

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Peridot and Anhydrite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Peridot and Anhydrite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Peridot and Anhydrite Optical Properties during the identification of gemstone. Specific gravity of Peridot is 2.90-2.98 whereas that of Anhydrite is 2.90-2.98.