Staurolite and Uvite Physical Properties

Staurolite

Uvite

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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.

2.97-3.14

Uneven, Conchoidal

{1011} Indistinct

-9999

Ca(Mg 3)MgAl 5(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)

Staurolite and Uvite Chemical Formula

While comparing Staurolite and Uvite 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 Uvite chemical formula.

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Staurolite and Uvite Specific Gravity

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