Augite and Hibonite Physical Properties

Augite

Hibonite

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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

3.19-3.563.84

1 7.18

1.5 Fracture

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

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

1.6 Cleavage

{110} Perfect, {010} Indistinct

{0001} good, {10 1 0} parting

1.7 Mohs Hardness

5.5-67.5-8

2 10

1.8 Chemical Composition

(Ca,Na)(Mg,Fe,Al,Ti)(Si,Al) 2O 6Anthony et al , Handbook of mineralogy (2001)

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

Augite and Hibonite Chemical Formula

While comparing Augite and Hibonite 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 Augite and Hibonite chemical formula.

Chemical formula of Augite- (Ca,Na)(Mg,Fe,Al,Ti)(Si,Al) 2O 6Anthony et al , Handbook of mineralogy (2001)
Chemical formula of Hibonite- (Ca,Ce)(Al,Ti,Mg)12O19

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Augite and Hibonite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Augite and Hibonite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Augite and Hibonite Optical Properties during the identification of gemstone. Specific gravity of Augite is 3.84 whereas that of Hibonite is 3.84.