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Kyanite
Kyanite

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Kyanite and Powellite Physical Properties

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1 Physical Properties
1.1 Tenacity
Brittle
Not Available
1.2 Solubility
Not Available
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
3.53-3.65
4.23
1.5 Fracture
Splintery, Brittle, Metallic
UnevenAnthony et al, Handbook of mineralogy (2001), UnevenAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal
1.6 Cleavage
[100] perfect [010] imperfect with 79° angle between
{111} Distinct
1.7 Mohs Hardness
4-7
3.5-4
1.8 Chemical Composition
Not Available
CaMoO 4Michael O’Donoghue , Gems, Sixth Edition (2006)

Kyanite and Powellite Chemical Formula

While comparing Kyanite and Powellite 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 Powellite chemical formula.

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  • Chemical formula of Powellite- CaMoO 4Michael O’Donoghue , Gems, Sixth Edition (2006)

Kyanite and Powellite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Kyanite and Powellite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Kyanite and Powellite Optical Properties during the identification of gemstone. Specific gravity of Kyanite is 4.23 whereas that of Powellite is 4.23.