Bustamite and Apatite Physical Properties

Bustamite

Apatite

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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

3.16-3.23

Conchoidal, Uneven, Conchoidal to uneven

[0001] indistinct, [1010] indistinct

Ca 5(PO 4) 3(F,OH,Cl)Walter Schumann , Gemstones of the world (2001) More from other references

Bustamite and Apatite Chemical Formula

While comparing Bustamite and Apatite 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 Apatite chemical formula.

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Bustamite and Apatite Specific Gravity

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