Celestine and Kyanite Physical Properties

Celestine

Kyanite

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.90-4.003.53-3.65

1 7.18

1.5 Fracture

Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Brittle, Conchoidal

Splintery, Brittle, Metallic

1.6 Cleavage

Perfect on {001}, good on {210}, poor on {010}

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

1.7 Mohs Hardness

3-3.54-7

2 10

1.8 Chemical Composition

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

Not Available

Celestine and Kyanite Chemical Formula

While comparing Celestine 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 Celestine and Kyanite chemical formula.

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

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Celestine and Kyanite Specific Gravity

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