Staurolite and Baryte Physical Properties

Staurolite

Baryte

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

Not Available

Soluble

1.3 Durability

Not Available

1.4 Specific Gravity

3.7-3.84.3-5

1 7.18

1.5 Fracture

Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle

Irregular/uneven

1.6 Cleavage

Distinct on {010}

Perfect cleavage parallel to base and prism faces: {001} Perfect, {210} Perfect, {010} Imperfect

1.7 Mohs Hardness

7-7.53-3.5

2 10

1.8 Chemical Composition

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

Not Available

Staurolite and Baryte Chemical Formula

While comparing Staurolite and Baryte 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 Baryte chemical formula.

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

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Staurolite and Baryte Specific Gravity

Another important criteria for qualitative analysis of gemstones is Staurolite and Baryte Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Staurolite and Baryte Optical Properties during the identification of gemstone. Specific gravity of Staurolite is 4.3-5 whereas that of Baryte is 4.3-5.