Staurolite and Jade Physical Properties

Staurolite

Jade

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Physical Properties

Tenacity

Brittle

Solubility

Durability

Specific Gravity

3.7-3.82.90-3.38

1 7.18

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Fracture

Subconchoidal, Conchoidal

Splintery

Cleavage

Distinct on {010}

1 or 2,2 prismatic.

Mohs Hardness

7-7.56-7

2 10

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Chemical Composition

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

Nephrite: Ca₂(Mg,Fe)₅Si₈O₂₂(OH)₂ Jadeite: NaAlSi₂O₆

Staurolite and Jade Chemical Formula

While comparing Staurolite and Jade 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 Jade chemical formula.

Chemical formula of Staurolite- (Fe,Mg,Zn) 2Al 9(Si,Al) 4O 22(OH) 2Ulrich Henn and Claudio C.
Chemical formula of Jade- Nephrite: Ca₂(Mg,Fe)₅Si₈O₂₂(OH)₂ Jadeite: NaAlSi₂O₆

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Staurolite and Jade Specific Gravity

Another important criteria for qualitative analysis of gemstones is Staurolite and Jade Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Staurolite and Jade Optical Properties during the identification of gemstone. Specific gravity of Staurolite is 2.90-3.38 whereas that of Jade is 2.90-3.38.