Sapphire and Crocoite Physical Properties

Sapphire

Crocoite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

insoluble

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.95-4.035.90-6.10

1 7.18

1.5 Fracture

Uneven, Uneven, Gems, Sixth Edition (2006)

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

1.6 Cleavage

None, but may exhibit parting

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

1.7 Mohs Hardness

92.5-3

2 10

1.8 Chemical Composition

Al ₂ O ₃

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

Sapphire and Crocoite Chemical Formula

While comparing Sapphire and Crocoite 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 Sapphire and Crocoite chemical formula.

Chemical formula of Sapphire- Al ₂ O ₃
Chemical formula of Crocoite- PbCrO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Sapphire and Crocoite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Sapphire and Crocoite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sapphire and Crocoite Optical Properties during the identification of gemstone. Specific gravity of Sapphire is 5.90-6.10 whereas that of Crocoite is 5.90-6.10.