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Alunite
Alunite

Fluorite
Fluorite



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Alunite
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Fluorite

Alunite and Fluorite Physical Properties

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
Brittle
Soluble
-
2.6-2.9
Conchoidal, Uneven
On {0001}, perfect
3.5-4
KAl3(SO4)2(OH)6
 
Brittle
slightly water soluble and in hot hydrochloric acid
-
3.00-3.25
Subconchoidal, Uneven, ConchoidalWalter Schumann
Octahedral, perfect on {111}, parting on {011}
4
CaF2

Alunite and Fluorite Chemical Formula

While comparing Alunite and Fluorite 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 Fluorite chemical formula.

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Alunite and Fluorite Specific Gravity

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