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Kyanite
Kyanite

Colemanite
Colemanite



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Kyanite
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Colemanite

Kyanite and Colemanite Physical Properties

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
3.53-3.652.40-2.42
Amber
1 7.18
1.5 Fracture
Splintery, Brittle, Metallic
Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Brittle, Metallic
1.6 Cleavage
[100] perfect [010] imperfect with 79° angle between
{010} Perfect, {001} Distinct
1.7 Mohs Hardness
4-74.5
Amber
2 10
1.8 Chemical Composition
Not Available
Ca 2B 6O 11 · 5H 2OMichael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Kyanite and Colemanite Chemical Formula

While comparing Kyanite and Colemanite 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 Colemanite chemical formula.

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  • Chemical formula of Colemanite- Ca 2B 6O 11 · 5H 2OMichael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Kyanite and Colemanite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Kyanite and Colemanite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Kyanite and Colemanite Optical Properties during the identification of gemstone. Specific gravity of Kyanite is 2.40-2.42 whereas that of Colemanite is 2.40-2.42.