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Tanzanite
Tanzanite

Alunite
Alunite



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Tanzanite
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Alunite

Tanzanite and Alunite Physical Properties

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
Hard
3.35
Uneven, Conchoidal
Perfect {010}, imperfect {100}
6.5-7
Ca2Al3(SiO4)3(OH)
 
Brittle
Soluble
-
2.6-2.9
Conchoidal, Uneven
On {0001}, perfect
3.5-4
KAl3(SO4)2(OH)6

Tanzanite and Alunite Chemical Formula

While comparing Tanzanite 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 Tanzanite and Alunite chemical formula.

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Tanzanite and Alunite Specific Gravity

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