Sphalerite and Staurolite Physical Properties

Sphalerite

Staurolite

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

3.95-4.10

Uneven

{110} Perfect, {110} Perfect, {110} Perfect

3.5-4

(Zn,Fe)SMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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.

Sphalerite and Staurolite Chemical Formula

While comparing Sphalerite and Staurolite 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 Sphalerite and Staurolite chemical formula.

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Sphalerite and Staurolite Specific Gravity

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