Charlesite and Bustamite Physical Properties

Charlesite

Bustamite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

Partly soluble in HCl.

1.3 Durability

Not Available

1.4 Specific Gravity

1.793.32-3.43

1 7.18

1.5 Fracture

Irregular/uneven, Brittle, Metallic

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

1.6 Cleavage

Perfect on {10bar10}

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

1.7 Mohs Hardness

2.55.5-6

2 10

1.8 Chemical Composition

Ca6(Al,Si)2(SO4)2B(OH)4(OH,O)12•26(H2O)

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

Charlesite and Bustamite Chemical Formula

While comparing Charlesite 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 Charlesite and Bustamite chemical formula.

Chemical formula of Charlesite- Ca6(Al,Si)2(SO4)2B(OH)4(OH,O)12•26(H2O)
Chemical formula of Bustamite- (Ca,Mn2+ )Si 3O 9Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Charlesite and Bustamite Specific Gravity

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