Bustamite and Franklinite Physical Properties

Bustamite

Franklinite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Partly soluble in HCl.

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.32-3.435.05-5.22

1 7.18

1.5 Fracture

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

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

1.6 Cleavage

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

None

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

(Zn,Mn2+ ,Fe2+ )(Fe3+ ,Mn3+ ) 2O 4Anthony et al , Handbook of mineralogy (2001)

Bustamite and Franklinite Chemical Formula

While comparing Bustamite and Franklinite 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 Franklinite chemical formula.

Chemical formula of Bustamite- (Ca,Mn2+ )Si 3O 9Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Franklinite- (Zn,Mn2+ ,Fe2+ )(Fe3+ ,Mn3+ ) 2O 4Anthony et al , Handbook of mineralogy (2001)

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Bustamite and Franklinite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Bustamite and Franklinite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Bustamite and Franklinite Optical Properties during the identification of gemstone. Specific gravity of Bustamite is 5.05-5.22 whereas that of Franklinite is 5.05-5.22.