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Danburite
Danburite

Afghanite
Afghanite



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Danburite
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Afghanite

Danburite and Afghanite 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
2.97-3.032.55-2.65
Amber
1 7.18
1.5 Fracture
Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Conchoidal, Brittle
Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle, Conchoidal, Brittle
1.6 Cleavage
{001} Poor
Perfect {10 1 0}
1.7 Mohs Hardness
75.5-6
Amber
2 10
1.8 Chemical Composition
CaB 2(SiO 4) 2Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references
(Na,Ca,K) 8(Si,Al) 12O 24(SO 4,Cl,CO 3) 3(H 2O)Arthur Thomas , Gemstones (2009)

Danburite and Afghanite Chemical Formula

While comparing Danburite 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 Danburite and Afghanite chemical formula.

  • Chemical formula of Danburite- CaB 2(SiO 4) 2Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references
  • Chemical formula of Afghanite- (Na,Ca,K) 8(Si,Al) 12O 24(SO 4,Cl,CO 3) 3(H 2O)Arthur Thomas , Gemstones (2009)

Danburite and Afghanite Specific Gravity

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