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Dioptase
Dioptase

Kyanite
Kyanite



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Dioptase
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Dioptase and Kyanite Physical Properties

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1 Physical Properties
1.1 Tenacity
Brittle
Brittle
1.2 Solubility
Soluble
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
3.25-3.35
3.53-3.65
1.5 Fracture
Conchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Conchoidal, Brittle
Splintery, Brittle, Metallic
1.6 Cleavage
Perfect in three directions
[100] perfect [010] imperfect with 79° angle between
1.7 Mohs Hardness
5
4-7
1.8 Chemical Composition
CuSiO 2(OH) 2Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references
Not Available

Dioptase and Kyanite Chemical Formula

While comparing Dioptase 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 Dioptase and Kyanite chemical formula.

  • Chemical formula of Dioptase- CuSiO 2(OH) 2Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references
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Dioptase and Kyanite Specific Gravity

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