Thulite and Coral Physical Properties

Thulite

Coral

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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

3.1

2.60-2.70

1.5 Fracture

Uneven, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009)

Irregular, Irregular, Gemstones of the world (2001)

1.6 Cleavage

Perfect {010} imperfect {100}

Not Available

1.7 Mohs Hardness

6-7

3-4

1.8 Chemical Composition

Ca₂Al₃(SiO₄)₃(OH)

CaCO 3Ulrich Henn and Claudio C.

Thulite and Coral Chemical Formula

While comparing Thulite 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 Thulite and Coral chemical formula.

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

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Thulite and Coral Specific Gravity

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