Variscite and Bustamite Physical Properties

Variscite

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

2.42-2.583.32-3.43

1 7.18

1.5 Fracture

Conchoidal, Splintery, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Brittle

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

1.6 Cleavage

[010] perfect

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

1.7 Mohs Hardness

4-55.5-6

2 10

1.8 Chemical Composition

AlPO₄ · 2(H₂O)

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

Variscite and Bustamite Chemical Formula

While comparing Variscite 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 Variscite and Bustamite chemical formula.

Chemical formula of Variscite- AlPO₄ · 2(H₂O)
Chemical formula of Bustamite- (Ca,Mn2+ )Si 3O 9Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Compare Gems for Virgo

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Variscite Vs Aragonite

Variscite Vs Garnet

Variscite and Bustamite Specific Gravity

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