Hibonite and Ruby Physical Properties

Hibonite

Ruby

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.843.97-4.05

1 7.18

1.5 Fracture

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

Conchoidal

1.6 Cleavage

{0001} good, {10 1 0} parting

No true cleavage

1.7 Mohs Hardness

7.5-89

2 10

1.8 Chemical Composition

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

Al ₂ O ₃

Hibonite and Ruby Chemical Formula

While comparing Hibonite and Ruby 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 Ruby chemical formula.

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

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Hibonite and Ruby Specific Gravity

Another important criteria for qualitative analysis of gemstones is Hibonite and Ruby Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Hibonite and Ruby Optical Properties during the identification of gemstone. Specific gravity of Hibonite is 3.97-4.05 whereas that of Ruby is 3.97-4.05.