Crocoite and Coral Physical Properties

Crocoite

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

5.90-6.10

2.60-2.70

1.5 Fracture

ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009), (e.g. graphite).

Irregular, Irregular, Gemstones of the world (2001)

1.6 Cleavage

{110} Distinct, {001} Indistinct, {100} Indistinct

Not Available

1.7 Mohs Hardness

2.5-3

3-4

1.8 Chemical Composition

PbCrO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

CaCO 3Ulrich Henn and Claudio C.

Crocoite and Coral Chemical Formula

While comparing Crocoite 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 Crocoite and Coral chemical formula.

Chemical formula of Crocoite- PbCrO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Coral- CaCO 3Ulrich Henn and Claudio C.

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Crocoite and Coral Specific Gravity

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