Bustamite and Fire Opal Physical Properties

Bustamite

Fire Opal

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

Partly soluble in HCl.

3.32-3.43

Conchoidal

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

5.5-6

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

1.97-2.22

Conchoidal

None

6-6.5

SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001) More from other references

Bustamite and Fire Opal Chemical Formula

While comparing Bustamite and Fire Opal 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 Fire Opal chemical formula.

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Bustamite and Fire Opal Specific Gravity

Another important criteria for qualitative analysis of gemstones is Bustamite and Fire Opal Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Bustamite Vs Fire Opal during the identification of gemstone. Specific gravity of Bustamite is whereas that of Fire Opal is .