Jacobsite and Staurolite Physical Properties

Jacobsite

Staurolite

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Physical Properties

Tenacity

Brittle

Solubility

Durability

Specific Gravity

4.76-5.033.7-3.8

1 7.18

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Fracture

Conchoidal

Subconchoidal, Conchoidal

Cleavage

None

Distinct on {010}

Mohs Hardness

5.5-6.57-7.5

2 10

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Chemical Composition

(Mn2+ ,Fe2+ ,Mg)(Fe3+ ,Mn3+ ) 2O 4Anthony et al , Handbook of mineralogy (2001)

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

Jacobsite and Staurolite Chemical Formula

While comparing Jacobsite 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 Jacobsite and Staurolite chemical formula.

Chemical formula of Jacobsite- (Mn2+ ,Fe2+ ,Mg)(Fe3+ ,Mn3+ ) 2O 4Anthony et al , Handbook of mineralogy (2001)
Chemical formula of Staurolite- (Fe,Mg,Zn) 2Al 9(Si,Al) 4O 22(OH) 2Ulrich Henn and Claudio C.

Compare Brown Gemstones

Jacobsite Vs Povondraite

Jacobsite Vs Sonolite

Jacobsite Vs Staurolite

Jacobsite and Staurolite Specific Gravity

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