Peridot and Hematite Physical Properties

Peridot

Hematite

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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

1.54-1.555.00-5.30

1 7.18

1.5 Fracture

Conchoidal

Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Conchoidal, Brittle

1.6 Cleavage

Poor

None, may show partings on {0001} and {10 1 1}

1.7 Mohs Hardness

6.5-76

2 10

1.8 Chemical Composition

(Mg,Fe)₂SiO₄

Fe 2O 3Arthur Thomas , Gemstones (2009)

Peridot and Hematite Chemical Formula

While comparing Peridot and Hematite 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 Hematite chemical formula.

Chemical formula of Peridot- (Mg,Fe)₂SiO₄
Chemical formula of Hematite- Fe 2O 3Arthur Thomas , Gemstones (2009)

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Peridot and Hematite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Peridot and Hematite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Peridot and Hematite Optical Properties during the identification of gemstone. Specific gravity of Peridot is 5.00-5.30 whereas that of Hematite is 5.00-5.30.