Rhodochrosite and Bustamite Physical Properties

Rhodochrosite

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

3.0-3.3

3.32-3.43

1.5 Fracture

Uneven, Conchoidal, Conchoidal to uneven, Brittle

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

1.6 Cleavage

On {10 1 1} perfect; parting on {10 1 2}

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

1.7 Mohs Hardness

3.5-4

5.5-6

1.8 Chemical Composition

MnCO₃

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

Rhodochrosite and Bustamite Chemical Formula

While comparing Rhodochrosite 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 Rhodochrosite and Bustamite chemical formula.

Chemical formula of Rhodochrosite- MnCO₃
Chemical formula of Bustamite- (Ca,Mn2+ )Si 3O 9Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Rhodochrosite and Bustamite Specific Gravity

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