Clinozoisite and Staurolite Physical Properties

Clinozoisite

Staurolite

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.21-3.383.7-3.8

1 7.18

1.5 Fracture

Irregular/uneven, Uneven

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

1.6 Cleavage

Perfect on {001}

Distinct on {010}

1.7 Mohs Hardness

6-77-7.5

2 10

1.8 Chemical Composition

Ca 2Al 3(SiO 4) 3(OH)Walter Schumann , Gemstones of the world (2001) More from other references

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

Clinozoisite and Staurolite Chemical Formula

While comparing Clinozoisite 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 Clinozoisite and Staurolite chemical formula.

Chemical formula of Clinozoisite- Ca 2Al 3(SiO 4) 3(OH)Walter Schumann , Gemstones of the world (2001) More from other references
Chemical formula of Staurolite- (Fe,Mg,Zn) 2Al 9(Si,Al) 4O 22(OH) 2Ulrich Henn and Claudio C.

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Clinozoisite and Staurolite Specific Gravity

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