Kyanite and Celestine Physical Properties

Kyanite

Celestine

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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

3.53-3.653.90-4.00

1 7.18

1.5 Fracture

Splintery, Brittle, Metallic

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

1.6 Cleavage

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

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

1.7 Mohs Hardness

4-73-3.5

2 10

1.8 Chemical Composition

Not Available

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

Kyanite and Celestine Chemical Formula

While comparing Kyanite and Celestine 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 Kyanite and Celestine chemical formula.

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

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Kyanite and Celestine Specific Gravity

Another important criteria for qualitative analysis of gemstones is Kyanite and Celestine Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Kyanite and Celestine Optical Properties during the identification of gemstone. Specific gravity of Kyanite is 3.90-4.00 whereas that of Celestine is 3.90-4.00.