Piemontite and Coral Physical Properties

Piemontite

Coral

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

Not Available2.60-2.70

1 7.18

1.5 Fracture

Uneven, Splintery

Irregular, Irregular, Gemstones of the world (2001)

1.6 Cleavage

[001] good, [100] distinct

Not Available

1.7 Mohs Hardness

6-6.53-4

2 10

1.8 Chemical Composition

Not Available

CaCO 3Ulrich Henn and Claudio C.

Piemontite and Coral Chemical Formula

While comparing Piemontite 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 Piemontite and Coral chemical formula.

Chemical formula of Coral- CaCO 3Ulrich Henn and Claudio C.

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Piemontite and Coral Specific Gravity

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