Staurolite and Strontianite Physical Properties

Staurolite

Strontianite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.7-3.83.63-3.79

1 7.18

1.5 Fracture

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

Uneven, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal

1.6 Cleavage

Distinct on {010}

{110} Good

1.7 Mohs Hardness

7-7.53.5

2 10

1.8 Chemical Composition

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

SrCO 3Walter Schumann , Gemstones of the world (2001) More from other references

Staurolite and Strontianite Chemical Formula

While comparing Staurolite and Strontianite 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 Strontianite chemical formula.

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

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Staurolite and Strontianite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Staurolite and Strontianite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Staurolite and Strontianite Optical Properties during the identification of gemstone. Specific gravity of Staurolite is 3.63-3.79 whereas that of Strontianite is 3.63-3.79.