Crocoite and Kyanite Physical Properties

Crocoite

Kyanite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

5.90-6.103.53-3.65

1 7.18

1.5 Fracture

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

Splintery, Brittle, Metallic

1.6 Cleavage

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

[100] perfect [010] imperfect with 79° angle between

1.7 Mohs Hardness

2.5-34-7

2 10

1.8 Chemical Composition

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

Not Available

Crocoite and Kyanite Chemical Formula

While comparing Crocoite and Kyanite 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 Kyanite chemical formula.

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

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Crocoite and Kyanite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Crocoite and Kyanite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Crocoite and Kyanite Optical Properties during the identification of gemstone. Specific gravity of Crocoite is 3.53-3.65 whereas that of Kyanite is 3.53-3.65.