Bustamite and Ajoite Physical Properties

Bustamite

Ajoite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Partly soluble in HCl.

Decomposed by acids

1.4 Durability

Not Available

1.5 Specific Gravity

3.32-3.432.96

1 7.18

1.8 Fracture

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

Not Available

1.9 Cleavage

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

Perfect on {010}

1.10 Mohs Hardness

5.5-65

2 10

1.12 Chemical Composition

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

(K,Na)3Cu20Al3Si29O76(OH)16•~8(H2O)

Bustamite and Ajoite Chemical Formula

While comparing Bustamite and Ajoite 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 Ajoite chemical formula.

Chemical formula of Bustamite- (Ca,Mn2+ )Si 3O 9Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Ajoite- (K,Na)3Cu20Al3Si29O76(OH)16•~8(H2O)

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Bustamite and Ajoite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Bustamite and Ajoite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Bustamite and Ajoite Optical Properties during the identification of gemstone. Specific gravity of Bustamite is 2.96 whereas that of Ajoite is 2.96.