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Staurolite
Staurolite

Tanzanite
Tanzanite



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Staurolite
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Tanzanite

Staurolite and Tanzanite Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
Brittle
-
-
3.7-3.8
Subconchoidal, Conchoidal
Distinct on {010}
7-7.5
(Fe,Mg,Zn) 2Al 9(Si,Al) 4O 22(OH) 2Ulrich Henn and Claudio C.
 
-
-
Hard
3.35
Uneven, Conchoidal
Perfect {010}, imperfect {100}
6.5-7
Ca2Al3(SiO4)3(OH)

Staurolite and Tanzanite Chemical Formula

While comparing Staurolite and Tanzanite 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 Staurolite and Tanzanite chemical formula.

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Staurolite and Tanzanite Specific Gravity

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