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Afghanite
Afghanite

Malachite
Malachite



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Afghanite
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Malachite

Afghanite and Malachite 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
2.55-2.653.25-4.10
Amber
1 7.18
1.5 Fracture
Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle, Conchoidal, Brittle
Conchoidal, Conchoidal, Gemstones (2009), Uneven
1.6 Cleavage
Perfect {10 1 0}
Perfect on { 2 01} fair on {010}
1.7 Mohs Hardness
5.5-63.5-4
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)
Cu2CO3(OH)2

Afghanite and Malachite Chemical Formula

While comparing Afghanite and Malachite 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 Malachite 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)
  • Chemical formula of Malachite- Cu2CO3(OH)2

Afghanite and Malachite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Afghanite and Malachite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Afghanite and Malachite Optical Properties during the identification of gemstone. Specific gravity of Afghanite is 3.25-4.10 whereas that of Malachite is 3.25-4.10.