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Kyanite
Kyanite

Oligoclase
Oligoclase



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Kyanite
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Oligoclase

Kyanite and Oligoclase 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
3.53-3.652.62-2.67
Amber
1 7.18
1.5 Fracture
Splintery, Brittle, Metallic
Gems, Sixth Edition (2006), Gems, Sixth Edition (2006), Uneven
1.6 Cleavage
[100] perfect [010] imperfect with 79° angle between
From the Greek, oligos and kasein, little cleavage.
1.7 Mohs Hardness
4-76-6.5
Amber
2 10
1.8 Chemical Composition
Not Available
Na(90-70%)Ca(10-30%)(Al,Si)AlSi 2O 8Michael O’Donoghue , Gems, Sixth Edition (2006)

Kyanite and Oligoclase Chemical Formula

While comparing Kyanite and Oligoclase 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 Oligoclase chemical formula.

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  • Chemical formula of Oligoclase- Na(90-70%)Ca(10-30%)(Al,Si)AlSi 2O 8Michael O’Donoghue , Gems, Sixth Edition (2006)

Kyanite and Oligoclase Specific Gravity

Another important criteria for qualitative analysis of gemstones is Kyanite and Oligoclase Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Kyanite and Oligoclase Optical Properties during the identification of gemstone. Specific gravity of Kyanite is 2.62-2.67 whereas that of Oligoclase is 2.62-2.67.