Peridot and Benitoite Physical Properties

Peridot

Benitoite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

Insoluble: HCl

1.3 Durability

Not Available

1.4 Specific Gravity

1.54-1.553.61-3.68

1 7.18

1.5 Fracture

Conchoidal

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

1.6 Cleavage

Poor

[10 1 1] poor

1.7 Mohs Hardness

6.5-76-6.5

2 10

1.8 Chemical Composition

(Mg,Fe)₂SiO₄

BaTiSi 3O 9Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Peridot and Benitoite Chemical Formula

While comparing Peridot and Benitoite 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 Benitoite chemical formula.

Chemical formula of Peridot- (Mg,Fe)₂SiO₄
Chemical formula of Benitoite- BaTiSi 3O 9Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Peridot and Benitoite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Peridot and Benitoite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Peridot and Benitoite Optical Properties during the identification of gemstone. Specific gravity of Peridot is 3.61-3.68 whereas that of Benitoite is 3.61-3.68.