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Kyanite
Kyanite

Caledonite
Caledonite



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Kyanite
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Caledonite

Kyanite and Caledonite Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
Brittle
-
-
3.53-3.65
Splintery
[100] perfect [010] imperfect with 79° angle between
4-7
Al2SiO5
 
Brittle
-
-
5.6-5.76
Uneven
[001] perfect; [100] distinct
2.5-3
Pb 5Cu 2(SO 4) 3(CO 3)(OH) 6Anthony et al , Handbook of mineralogy (2001)

Kyanite and Caledonite Chemical Formula

While comparing Kyanite and Caledonite 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 Caledonite chemical formula.

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Kyanite and Caledonite Specific Gravity

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