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Sylvite
Sylvite

Staurolite
Staurolite



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Sylvite
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Staurolite

Sylvite and Staurolite Physical Properties

Physical Properties

Tenacity

Brittle
Brittle

Solubility

Soluble
-

Durability

-
-

Specific Gravity

1.9933.7-3.8
1 7.18
👆🏻

Fracture

Uneven
Subconchoidal, Conchoidal

Cleavage

Perfect on [100], [010], [001]
Distinct on {010}

Mohs Hardness

2.57-7.5
2 10
👆🏻

Chemical Composition

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

Sylvite and Staurolite Chemical Formula

While comparing Sylvite 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 Sylvite and Staurolite chemical formula.

  • Chemical formula of Sylvite- KCl
  • Chemical formula of Staurolite- (Fe,Mg,Zn) 2Al 9(Si,Al) 4O 22(OH) 2Ulrich Henn and Claudio C.

Sylvite and Staurolite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Sylvite and Staurolite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sylvite and Staurolite Optical Properties during the identification of gemstone. Specific gravity of Sylvite is 3.7-3.8 whereas that of Staurolite is 3.7-3.8.