Bustamite and Hibschite Physical Properties

Bustamite

Hibschite

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Physical Properties

Tenacity

Solubility

Partly soluble in HCl.

Durability

Specific Gravity

3.32-3.433.05-3.08

1 7.18

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Fracture

Conchoidal

Uneven, Irregular, Conchoidal

Cleavage

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

None

Mohs Hardness

5.5-66.5

2 10

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Chemical Composition

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

Ca 3Al 2(SiO 4) 3-x(OH) 4x (x=0.2 to 1.5)Anthony et al , Handbook of mineralogy (2001)

Bustamite and Hibschite Chemical Formula

While comparing Bustamite and Hibschite 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 Hibschite chemical formula.

Chemical formula of Bustamite- (Ca,Mn2+ )Si 3O 9Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Hibschite- Ca 3Al 2(SiO 4) 3-x(OH) 4x (x=0.2 to 1.5)Anthony et al , Handbook of mineralogy (2001)

Compare Red Gemstones

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Bustamite and Hibschite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Bustamite and Hibschite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Bustamite and Hibschite Optical Properties during the identification of gemstone. Specific gravity of Bustamite is 3.05-3.08 whereas that of Hibschite is 3.05-3.08.