Strontianite and Staurolite Physical Properties

Strontianite

Staurolite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.63-3.79

3.7-3.8

1.5 Fracture

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

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

1.6 Cleavage

{110} Good

Distinct on {010}

1.7 Mohs Hardness

3.5

7-7.5

1.8 Chemical Composition

SrCO 3Walter 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.

Strontianite and Staurolite Chemical Formula

While comparing Strontianite 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 Strontianite and Staurolite chemical formula.

Chemical formula of Strontianite- SrCO 3Walter 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.

Compare Green Gemstones

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Strontianite Vs Tourmaline

Strontianite Vs Tortoiseshell

Strontianite and Staurolite Specific Gravity

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