Peridot and Rossmanite Physical Properties

Peridot

Rossmanite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

1.54-1.553

1 7.18

1.5 Fracture

Conchoidal

Brittle, Metallic

1.6 Cleavage

Poor

None

1.7 Mohs Hardness

6.5-7Not Available

2 10

1.8 Chemical Composition

(Mg,Fe)₂SiO₄

◻(LiAl 2)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)

Peridot and Rossmanite Chemical Formula

While comparing Peridot and Rossmanite 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 Rossmanite chemical formula.

Chemical formula of Peridot- (Mg,Fe)₂SiO₄
Chemical formula of Rossmanite- ◻(LiAl 2)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)

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Peridot and Rossmanite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Peridot and Rossmanite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Peridot and Rossmanite Optical Properties during the identification of gemstone. Specific gravity of Peridot is 3 whereas that of Rossmanite is 3.