Tanzanite and Peridot Physical Properties

Tanzanite

Peridot

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Hard

Not Available

1.4 Specific Gravity

3.35

1.54-1.55

1.5 Fracture

Uneven, Conchoidal, UnevenWalter Schumann, Gemstones of the world (2001)

Conchoidal

1.6 Cleavage

Perfect {010}, imperfect {100}

Poor

1.7 Mohs Hardness

6.5-7

1.8 Chemical Composition

Ca₂Al₃(SiO₄)₃(OH)

(Mg,Fe)₂SiO₄

Tanzanite and Peridot Chemical Formula

While comparing Tanzanite and Peridot 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 Tanzanite and Peridot chemical formula.

Chemical formula of Tanzanite- Ca₂Al₃(SiO₄)₃(OH)
Chemical formula of Peridot- (Mg,Fe)₂SiO₄

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Tanzanite and Peridot Specific Gravity

Another important criteria for qualitative analysis of gemstones is Tanzanite and Peridot Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Tanzanite and Peridot Optical Properties during the identification of gemstone. Specific gravity of Tanzanite is 1.54-1.55 whereas that of Peridot is 1.54-1.55.