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Charoite
Charoite

Oligoclase
Oligoclase



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Charoite
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Oligoclase

Charoite and Oligoclase Physical Properties

1 Physical Properties
1.1 Tenacity
Not Available
Not Available
1.2 Solubility
Not Available
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
2.54-2.78
2.62-2.67
1.5 Fracture
Conchoidal, ConchoidalArthur Thomas, Gemstones (2009)
Gems, Sixth Edition (2006), Gems, Sixth Edition (2006), Uneven
1.6 Cleavage
Good in three directions
From the Greek, oligos and kasein, little cleavage.
1.7 Mohs Hardness
5-6
6-6.5
1.8 Chemical Composition
K(Ca,Na) 2Si 4O 10(OH,F) · H 2OMichael O’Donoghue , Gems, Sixth Edition (2006) More from other references
Na(90-70%)Ca(10-30%)(Al,Si)AlSi 2O 8Michael O’Donoghue , Gems, Sixth Edition (2006)

Charoite and Oligoclase Chemical Formula

While comparing Charoite 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 Charoite and Oligoclase chemical formula.

  • Chemical formula of Charoite- K(Ca,Na) 2Si 4O 10(OH,F) · H 2OMichael O’Donoghue , Gems, Sixth Edition (2006) More from other references
  • Chemical formula of Oligoclase- Na(90-70%)Ca(10-30%)(Al,Si)AlSi 2O 8Michael O’Donoghue , Gems, Sixth Edition (2006)

Charoite and Oligoclase Specific Gravity

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