Bustamite and Chrysoberyl Physical Properties

Bustamite

Chrysoberyl

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Partly soluble in HCl.

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.32-3.433.69-3.81

1 7.18

1.5 Fracture

ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)

Uneven, Conchoidal to uneven, Brittle, Metallic, Uneven, ConchoidalWalter Schumann, Brittle, Metallic

1.6 Cleavage

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

Distinct on {110}, imperfect on {010}, poor on {001}

1.7 Mohs Hardness

5.5-68.5

2 10

1.8 Chemical Composition

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

BeAl ₂ O ₄

Bustamite and Chrysoberyl Chemical Formula

While comparing Bustamite and Chrysoberyl 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 Chrysoberyl chemical formula.

Chemical formula of Bustamite- (Ca,Mn2+ )Si 3O 9Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Chrysoberyl- BeAl ₂ O ₄

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Bustamite and Chrysoberyl Specific Gravity

Another important criteria for qualitative analysis of gemstones is Bustamite and Chrysoberyl Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Bustamite and Chrysoberyl Optical Properties during the identification of gemstone. Specific gravity of Bustamite is 3.69-3.81 whereas that of Chrysoberyl is 3.69-3.81.