Pleonaste and Hibonite Physical Properties

Pleonaste

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

3.803.84

1 7.18

1.5 Fracture

Not Available

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

1.6 Cleavage

Not Available

{0001} good, {10 1 0} parting

1.7 Mohs Hardness

87.5-8

2 10

1.8 Chemical Composition

(Mg,Fe)Al 2O 4Gemdat.org , Management Team (2012)

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

Pleonaste and Hibonite Chemical Formula

While comparing Pleonaste 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 Pleonaste and Hibonite chemical formula.

Chemical formula of Pleonaste- (Mg,Fe)Al 2O 4Gemdat.org , Management Team (2012)
Chemical formula of Hibonite- (Ca,Ce)(Al,Ti,Mg)12O19

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Pleonaste and Hibonite Specific Gravity

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