Jacobsite and Augelite Physical Properties

Jacobsite

Augelite

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

4.76-5.032.70-2.75

1 7.18

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Fracture

Conchoidal

Cleavage

None

From the Greek for luster, for its pearly luster on the cleavage.

Mohs Hardness

5.5-6.54.5-5

2 10

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Chemical Composition

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

Al 2(PO 4)(OH) 3Michael OâDonoghue , Gems, Sixth Edition (2006)

Jacobsite and Augelite Chemical Formula

While comparing Jacobsite and Augelite 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 Augelite chemical formula.

Chemical formula of Jacobsite- (Mn2+ ,Fe2+ ,Mg)(Fe3+ ,Mn3+ ) 2O 4Anthony et al , Handbook of mineralogy (2001)
Chemical formula of Augelite- Al 2(PO 4)(OH) 3Michael OâDonoghue , Gems, Sixth Edition (2006)

Compare Brown Gemstones

Jacobsite Vs Povondraite

Jacobsite Vs Sonolite

Jacobsite Vs Staurolite

Jacobsite and Augelite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Jacobsite and Augelite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Jacobsite and Augelite Optical Properties during the identification of gemstone. Specific gravity of Jacobsite is 2.70-2.75 whereas that of Augelite is 2.70-2.75.