Bustamite and Marialite Physical Properties

Bustamite

Marialite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Partly soluble in HCl.

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.32-3.432.50

1 7.18

1.5 Fracture

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

Uneven, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal

1.6 Cleavage

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

Distinct on {100} and {110}

1.7 Mohs Hardness

5.5-65.5-6

2 10

1.8 Chemical Composition

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

3NaAlSi 3O 8 · NaClAnthony et al , Handbook of mineralogy (2001)

Bustamite and Marialite Chemical Formula

While comparing Bustamite and Marialite 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 Marialite chemical formula.

Chemical formula of Bustamite- (Ca,Mn2+ )Si 3O 9Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Marialite- 3NaAlSi 3O 8 · NaClAnthony et al , Handbook of mineralogy (2001)

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Bustamite and Marialite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Bustamite and Marialite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Bustamite and Marialite Optical Properties during the identification of gemstone. Specific gravity of Bustamite is 2.50 whereas that of Marialite is 2.50.