Bustamite and Hibonite Physical Properties

Bustamite

Hibonite

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Physical Properties

Tenacity

Solubility

Partly soluble in HCl.

Durability

Specific Gravity

3.32-3.433.84

1 7.18

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Fracture

Conchoidal

Subconchoidal, Conchoidal

Cleavage

{100} perfect; {110} and {1 1 0} good; {010} poor

{0001} good, {10 1 0} parting

Mohs Hardness

5.5-67.5-8

2 10

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Chemical Composition

(Ca,Mn2+ )Si 3O 9Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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

Bustamite and Hibonite Chemical Formula

While comparing Bustamite 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 Bustamite and Hibonite chemical formula.

Chemical formula of Bustamite- (Ca,Mn2+ )Si 3O 9Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Hibonite- (Ca,Ce)(Al,Ti,Mg)12O19

Compare Red Gemstones

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Bustamite and Hibonite Specific Gravity

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