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Alunite
Alunite

Plasma
Plasma



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Alunite
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Plasma

Alunite and Plasma Physical Properties

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Physical Properties

Tenacity

Brittle
-

Solubility

Soluble
-

Durability

-
-

Specific Gravity

2.6-2.9-9999
1 7.18
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Fracture

Conchoidal, Uneven
-

Cleavage

On {0001}, perfect
None

Mohs Hardness

3.5-4-9999
2 10
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Chemical Composition

KAl3(SO4)2(OH)6
Cu9(AsO4)2(OH)10

Alunite and Plasma Chemical Formula

While comparing Alunite and Plasma 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 Alunite and Plasma chemical formula.

  • Chemical formula of Alunite- KAl3(SO4)2(OH)6
  • Chemical formula of Plasma- Cu9(AsO4)2(OH)10

Alunite and Plasma Specific Gravity

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