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Chiastolite
Chiastolite

Afghanite
Afghanite



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Chiastolite
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Afghanite

Chiastolite and Afghanite 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
3.00-3.152.55-2.65
Amber
1 7.18
1.5 Fracture
Not Available
Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle, Conchoidal, Brittle
1.6 Cleavage
Not Available
Perfect {10 1 0}
1.7 Mohs Hardness
5-5.55.5-6
Amber
2 10
1.8 Chemical Composition
Al 2SiO 5Michael O’Donoghue , Gems, Sixth edition (2006)
(Na,Ca,K) 8(Si,Al) 12O 24(SO 4,Cl,CO 3) 3(H 2O)Arthur Thomas , Gemstones (2009)

Chiastolite and Afghanite Chemical Formula

While comparing Chiastolite and Afghanite 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 Chiastolite and Afghanite chemical formula.

  • Chemical formula of Chiastolite- Al 2SiO 5Michael O’Donoghue , Gems, Sixth edition (2006)
  • Chemical formula of Afghanite- (Na,Ca,K) 8(Si,Al) 12O 24(SO 4,Cl,CO 3) 3(H 2O)Arthur Thomas , Gemstones (2009)

Chiastolite and Afghanite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Chiastolite and Afghanite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Chiastolite and Afghanite Optical Properties during the identification of gemstone. Specific gravity of Chiastolite is 2.55-2.65 whereas that of Afghanite is 2.55-2.65.