Tanzanite and Coral Physical Properties

Tanzanite

Coral

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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

2.60-2.70

1.5 Fracture

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

Irregular, Irregular, Gemstones of the world (2001)

1.6 Cleavage

Perfect {010}, imperfect {100}

Not Available

1.7 Mohs Hardness

6.5-7

3-4

1.8 Chemical Composition

Ca₂Al₃(SiO₄)₃(OH)

CaCO 3Ulrich Henn and Claudio C.

Tanzanite and Coral Chemical Formula

While comparing Tanzanite and Coral 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 Coral chemical formula.

Chemical formula of Tanzanite- Ca₂Al₃(SiO₄)₃(OH)
Chemical formula of Coral- CaCO 3Ulrich Henn and Claudio C.

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Tanzanite and Coral Specific Gravity

Another important criteria for qualitative analysis of gemstones is Tanzanite and Coral Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Tanzanite and Coral Optical Properties during the identification of gemstone. Specific gravity of Tanzanite is 2.60-2.70 whereas that of Coral is 2.60-2.70.