Bustamite and Orthoclase Physical Properties

Bustamite

Orthoclase

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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

3.32-3.432.54-2.61

1 7.18

1.5 Fracture

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

Gems, Uneven

1.6 Cleavage

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

Has perfect cleavage on {001} and good cleavage on {010}. Cleavages intersect at 90°.

1.7 Mohs Hardness

5.5-66

2 10

1.8 Chemical Composition

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

KAlSi 3O 8Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Bustamite and Orthoclase Chemical Formula

While comparing Bustamite and Orthoclase 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 Orthoclase chemical formula.

Chemical formula of Bustamite- (Ca,Mn2+ )Si 3O 9Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Orthoclase- KAlSi 3O 8Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Bustamite and Orthoclase Specific Gravity

Another important criteria for qualitative analysis of gemstones is Bustamite and Orthoclase Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Bustamite and Orthoclase Optical Properties during the identification of gemstone. Specific gravity of Bustamite is 2.54-2.61 whereas that of Orthoclase is 2.54-2.61.