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Staurolite
Staurolite

Annabergite
Annabergite



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Staurolite
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Annabergite

Staurolite and Annabergite 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.
 
Sectile
-
-
3.07
-
Perfect on {010}, indistinct on {100} and {102}
2
Ni3(AsO4)2•8(H2O)

Staurolite and Annabergite Chemical Formula

While comparing Staurolite and Annabergite 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 Annabergite chemical formula.

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Staurolite and Annabergite Specific Gravity

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