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Afghanite
Afghanite

Mottramite
Mottramite



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Afghanite
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Mottramite

Afghanite and Mottramite Physical Properties

1 Physical Properties
1.1 Tenacity
Not Available
Brittle
1.2 Solubility
Not Available
Soluble
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
2.55-2.655.9
Amber
1 7.18
1.5 Fracture
Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle, Conchoidal, Brittle
Sub-Conchoidal, Brittle, Metallic
1.6 Cleavage
Perfect {10 1 0}
None observed
1.7 Mohs Hardness
5.5-63
Amber
2 10
1.8 Chemical Composition
(Na,Ca,K) 8(Si,Al) 12O 24(SO 4,Cl,CO 3) 3(H 2O)Arthur Thomas , Gemstones (2009)
Not Available

Afghanite and Mottramite Chemical Formula

While comparing Afghanite and Mottramite 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 Afghanite and Mottramite chemical formula.

  • Chemical formula of Afghanite- (Na,Ca,K) 8(Si,Al) 12O 24(SO 4,Cl,CO 3) 3(H 2O)Arthur Thomas , Gemstones (2009)
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Afghanite and Mottramite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Afghanite and Mottramite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Afghanite and Mottramite Optical Properties during the identification of gemstone. Specific gravity of Afghanite is 5.9 whereas that of Mottramite is 5.9.