Spodumene and Bustamite Physical Properties

Spodumene

Bustamite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

insoluble

Partly soluble in HCl.

1.3 Durability

Not Available

1.4 Specific Gravity

3.15-3.213.32-3.43

1 7.18

1.5 Fracture

Uneven, Subconchoidal, Gemstones (2009)

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

1.6 Cleavage

Perfect prismatic, two directions {110} ∧ {1 1 0} at 87°

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

1.7 Mohs Hardness

6-75.5-6

2 10

1.8 Chemical Composition

LiAlSi₂O₆

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

Spodumene and Bustamite Chemical Formula

While comparing Spodumene and Bustamite 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 Spodumene and Bustamite chemical formula.

Chemical formula of Spodumene- LiAlSi₂O₆
Chemical formula of Bustamite- (Ca,Mn2+ )Si 3O 9Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Spodumene and Bustamite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Spodumene and Bustamite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Spodumene and Bustamite Optical Properties during the identification of gemstone. Specific gravity of Spodumene is 3.32-3.43 whereas that of Bustamite is 3.32-3.43.