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Datolite
Datolite

Alunite
Alunite



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Datolite
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Alunite

Datolite and Alunite Physical Properties

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
Brittle
-
-
2.90-3.00
Conchoidal, Uneven
None
5-5.5
CaBSiO 4(OH)Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references
 
Brittle
Soluble
-
2.6-2.9
Conchoidal, Uneven
On {0001}, perfect
3.5-4
KAl3(SO4)2(OH)6

Datolite and Alunite Chemical Formula

While comparing Datolite and Alunite 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 Datolite and Alunite chemical formula.

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Datolite and Alunite Specific Gravity

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