Peridot and Aragonite Physical Properties

Peridot

Aragonite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

Dilute acid

1.3 Durability

Not Available

1.4 Specific Gravity

1.54-1.552.93-2.96

1 7.18

1.5 Fracture

Conchoidal

Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle

1.6 Cleavage

Poor

Distinct on {010}, imperfect {110} and {011}

1.7 Mohs Hardness

6.5-73.5-4

2 10

1.8 Chemical Composition

(Mg,Fe)₂SiO₄

CaCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Peridot and Aragonite Chemical Formula

While comparing Peridot and Aragonite 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 Aragonite chemical formula.

Chemical formula of Peridot- (Mg,Fe)₂SiO₄
Chemical formula of Aragonite- CaCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Peridot and Aragonite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Peridot and Aragonite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Peridot and Aragonite Optical Properties during the identification of gemstone. Specific gravity of Peridot is 2.93-2.96 whereas that of Aragonite is 2.93-2.96.