Staurolite and Celestine Physical Properties

Staurolite

Celestine

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Physical Properties

Tenacity

Brittle

Solubility

Durability

Specific Gravity

3.7-3.83.90-4.00

1 7.18

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Fracture

Subconchoidal, Conchoidal

Conchoidal

Cleavage

Distinct on {010}

Perfect on {001}, good on {210}, poor on {010}

Mohs Hardness

7-7.53-3.5

2 10

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Chemical Composition

(Fe,Mg,Zn) 2Al 9(Si,Al) 4O 22(OH) 2Ulrich Henn and Claudio C.

SrSO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Staurolite and Celestine Chemical Formula

While comparing Staurolite and Celestine 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 Celestine chemical formula.

Chemical formula of Staurolite- (Fe,Mg,Zn) 2Al 9(Si,Al) 4O 22(OH) 2Ulrich Henn and Claudio C.
Chemical formula of Celestine- SrSO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Staurolite and Celestine Specific Gravity

Another important criteria for qualitative analysis of gemstones is Staurolite and Celestine Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Staurolite and Celestine Optical Properties during the identification of gemstone. Specific gravity of Staurolite is 3.90-4.00 whereas that of Celestine is 3.90-4.00.