Peridot and Taaffeite Physical Properties

Peridot

Taaffeite

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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

1.54-1.553.60-3.61

1 7.18

1.5 Fracture

Conchoidal

1.6 Cleavage

Poor

Imperfect/fair/absent

1.7 Mohs Hardness

6.5-78-8.5

2 10

1.8 Chemical Composition

(Mg,Fe)₂SiO₄

Mg 3Al 8BeO 16Walter Schumann , Gemstones of the world (2001) More from other references

Peridot and Taaffeite Chemical Formula

While comparing Peridot and Taaffeite 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 Taaffeite chemical formula.

Chemical formula of Peridot- (Mg,Fe)₂SiO₄
Chemical formula of Taaffeite- Mg 3Al 8BeO 16Walter Schumann , Gemstones of the world (2001) More from other references

Compare Semi Precious Gemstones

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Peridot and Taaffeite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Peridot and Taaffeite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Peridot and Taaffeite Optical Properties during the identification of gemstone. Specific gravity of Peridot is 3.60-3.61 whereas that of Taaffeite is 3.60-3.61.