Lepidolite and Bustamite Physical Properties

Lepidolite

Bustamite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

Partly soluble in HCl.

1.3 Durability

Not Available

1.4 Specific Gravity

2.80-2.903.32-3.43

1 7.18

1.5 Fracture

Uneven, UnevenArthur Thomas, Gemstones (2009)

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

1.6 Cleavage

{001} perfect

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

1.7 Mohs Hardness

2.55.5-6

2 10

1.8 Chemical Composition

Mg 3Si 4O 10(OH) 2Ulrich Henn and Claudio C.

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

Lepidolite and Bustamite Chemical Formula

While comparing Lepidolite 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 Lepidolite and Bustamite chemical formula.

Chemical formula of Lepidolite- Mg 3Si 4O 10(OH) 2Ulrich Henn and Claudio C.
Chemical formula of Bustamite- (Ca,Mn2+ )Si 3O 9Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Lepidolite and Bustamite Specific Gravity

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