Kyanite and Zincite Physical Properties

Kyanite

Zincite

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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

3.53-3.655.50-5.90

1 7.18

1.5 Fracture

Splintery, Brittle, Metallic

Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle

1.6 Cleavage

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

On {10 1 0}, perfect; parting on {000 1 }

1.7 Mohs Hardness

4-74

2 10

1.8 Chemical Composition

Not Available

(Zn,Mn2+ )OMichael OâDonoghue , Gems, Sixth Edition (2006)

Kyanite and Zincite Chemical Formula

While comparing Kyanite and Zincite 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 Zincite chemical formula.

Chemical formula of Zincite- (Zn,Mn2+ )OMichael OâDonoghue , Gems, Sixth Edition (2006)

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Kyanite and Zincite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Kyanite and Zincite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Kyanite and Zincite Optical Properties during the identification of gemstone. Specific gravity of Kyanite is 5.50-5.90 whereas that of Zincite is 5.50-5.90.