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Cuprite
Cuprite

Kyanite
Kyanite



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Cuprite and Kyanite Physical Properties

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1 Physical Properties
1.1 Tenacity
Brittle
Brittle
1.2 Solubility
Not Available
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
5.85-6.15
3.53-3.65
1.5 Fracture
Conchoidal, Metallic, UnevenArthur Thomas, Gemstones (2009), Brittle, Conchoidal
Splintery, Brittle, Metallic
1.6 Cleavage
Fair in four directions forming octahedrons
[100] perfect [010] imperfect with 79° angle between
1.7 Mohs Hardness
3.5-4
4-7
1.8 Chemical Composition
Cu 2OMichael O’Donoghue , Gems, Sixth Edition (2006) More from other references
Not Available

Cuprite and Kyanite Chemical Formula

While comparing Cuprite 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 Cuprite and Kyanite chemical formula.

  • Chemical formula of Cuprite- Cu 2OMichael O’Donoghue , Gems, Sixth Edition (2006) More from other references
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Cuprite and Kyanite Specific Gravity

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