Bustamite and Phenakite Physical Properties

Bustamite

Phenakite

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Physical Properties

Tenacity

Brittle

Solubility

Partly soluble in HCl.

Durability

Specific Gravity

3.32-3.432.90-2.98

1 7.18

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Fracture

Conchoidal

Conchoidal, ConchoidalWalter Schumann

Cleavage

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

Distinct on {11 2 0}, imperfect on {10 1 1}

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

Be 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Bustamite and Phenakite Chemical Formula

While comparing Bustamite and Phenakite 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 Phenakite chemical formula.

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

Compare Red Gemstones

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Bustamite and Phenakite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Bustamite and Phenakite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Bustamite and Phenakite Optical Properties during the identification of gemstone. Specific gravity of Bustamite is 2.90-2.98 whereas that of Phenakite is 2.90-2.98.