Franklinite and Augelite Physical Properties

Franklinite

Augelite

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

5.05-5.22

Uneven

None

5.5-6

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

2.70-2.75

Conchoidal

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

4.5-5

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

Franklinite and Augelite Chemical Formula

While comparing Franklinite 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 Franklinite and Augelite chemical formula.

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Franklinite and Augelite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Franklinite and Augelite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Franklinite Vs Augelite during the identification of gemstone. Specific gravity of Franklinite is whereas that of Augelite is .