Hibonite and Augelite Physical Properties

Hibonite

Augelite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.842.70-2.75

1 7.18

1.5 Fracture

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

ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)

1.6 Cleavage

{0001} good, {10 1 0} parting

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

1.7 Mohs Hardness

7.5-84.5-5

2 10

1.8 Chemical Composition

(Ca,Ce)(Al,Ti,Mg)12O19

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

Hibonite and Augelite Chemical Formula

While comparing Hibonite 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 Hibonite and Augelite chemical formula.

Chemical formula of Hibonite- (Ca,Ce)(Al,Ti,Mg)12O19
Chemical formula of Augelite- Al 2(PO 4)(OH) 3Michael OâDonoghue , Gems, Sixth Edition (2006)

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Hibonite and Augelite Specific Gravity

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