Bustamite and Grossular Garnet Physical Properties

Bustamite

Grossular Garnet

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Partly soluble in HCl.

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.32-3.433.6

1 7.18

1.5 Fracture

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

Not Available

1.6 Cleavage

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

None

1.7 Mohs Hardness

5.5-66.5-7.5

2 10

1.8 Chemical Composition

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

Ca₃Al₂Si₃O₁₂

Bustamite and Grossular Garnet Chemical Formula

While comparing Bustamite and Grossular Garnet 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 Grossular Garnet chemical formula.

Chemical formula of Bustamite- (Ca,Mn2+ )Si 3O 9Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Grossular Garnet- Ca₃Al₂Si₃O₁₂

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Bustamite and Grossular Garnet Specific Gravity

Another important criteria for qualitative analysis of gemstones is Bustamite and Grossular Garnet Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Bustamite and Grossular Garnet Optical Properties during the identification of gemstone. Specific gravity of Bustamite is 3.6 whereas that of Grossular Garnet is 3.6.