Bustamite and Hematite Physical Properties

Bustamite

Hematite

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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

Brittle

5.00-5.30

Uneven, ConchoidalWalter Schumann, Conchoidal

None, may show partings on {0001} and {10 1 1}

Fe 2O 3Arthur Thomas , Gemstones (2009)

Bustamite and Hematite Chemical Formula

While comparing Bustamite and Hematite 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 Hematite chemical formula.

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Bustamite and Hematite Specific Gravity

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