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Purpurite
Purpurite

Afghanite
Afghanite



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Purpurite
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Afghanite

Purpurite and Afghanite Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
3.2-3.4
Uneven
[100] [001] perfect
4-4.5
MnPO 4Walter Schumann , Gemstones of the world (2001) More from other references
 
-
-
-
2.55-2.65
Conchoidal
Perfect {10 1 0}
5.5-6
(Na,Ca,K) 8(Si,Al) 12O 24(SO 4,Cl,CO 3) 3(H 2O)Arthur Thomas , Gemstones (2009)

Purpurite and Afghanite Chemical Formula

While comparing Purpurite 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 Purpurite and Afghanite chemical formula.

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Purpurite and Afghanite Specific Gravity

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