Epidote and Coral Physical Properties

Epidote

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

3.25-3.50

2.60-2.70

1.5 Fracture

Conchoidal, Conchoidal, Gemstones of the world (2001) More from other references, Fibrous

Irregular, Irregular, Gemstones of the world (2001)

1.6 Cleavage

{001} perfect and {100} imperfect

Not Available

1.7 Mohs Hardness

6-7

3-4

1.8 Chemical Composition

CaAl 2(Fe3+ ,Al)Si 3O 12(OH)Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

CaCO 3Ulrich Henn and Claudio C.

Epidote and Coral Chemical Formula

While comparing Epidote 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 Epidote and Coral chemical formula.

Chemical formula of Epidote- CaAl 2(Fe3+ ,Al)Si 3O 12(OH)Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Coral- CaCO 3Ulrich Henn and Claudio C.

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Epidote and Coral Specific Gravity

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