Peridot and Datolite Physical Properties

Peridot

Datolite

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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

1.54-1.552.90-3.00

1 7.18

1.5 Fracture

Conchoidal

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

1.6 Cleavage

Poor

None

1.7 Mohs Hardness

6.5-75-5.5

2 10

1.8 Chemical Composition

(Mg,Fe)₂SiO₄

CaBSiO 4(OH)Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Peridot and Datolite Chemical Formula

While comparing Peridot and Datolite 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 Datolite chemical formula.

Chemical formula of Peridot- (Mg,Fe)₂SiO₄
Chemical formula of Datolite- CaBSiO 4(OH)Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Peridot and Datolite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Peridot and Datolite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Peridot and Datolite Optical Properties during the identification of gemstone. Specific gravity of Peridot is 2.90-3.00 whereas that of Datolite is 2.90-3.00.