Ruby and Hibonite Physical Properties

Ruby

Hibonite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.97-4.053.84

1 7.18

1.5 Fracture

Conchoidal

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

1.6 Cleavage

No true cleavage

{0001} good, {10 1 0} parting

1.7 Mohs Hardness

97.5-8

2 10

1.8 Chemical Composition

Al ₂ O ₃

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

Ruby and Hibonite Chemical Formula

While comparing Ruby 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 Ruby and Hibonite chemical formula.

Chemical formula of Ruby- Al ₂ O ₃
Chemical formula of Hibonite- (Ca,Ce)(Al,Ti,Mg)12O19

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Ruby and Hibonite Specific Gravity

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