Verdite and Bustamite Physical Properties

Verdite

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

2.80-3.03.32-3.43

1 7.18

1.5 Fracture

Not Available

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

1.6 Cleavage

{110} Good

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

1.7 Mohs Hardness

35.5-6

2 10

1.8 Chemical Composition

NaFeS2•2(H2O)

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

Verdite and Bustamite Chemical Formula

While comparing Verdite 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 Verdite and Bustamite chemical formula.

Chemical formula of Verdite- NaFeS2•2(H2O)
Chemical formula of Bustamite- (Ca,Mn2+ )Si 3O 9Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Verdite and Bustamite Specific Gravity

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