Willemite and Rhodochrosite Physical Properties

Willemite

Rhodochrosite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.89-4.18

3.0-3.3

1.5 Fracture

Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Uneven

Uneven, Conchoidal, Conchoidal to uneven, Brittle

1.6 Cleavage

{0001}, {11 2 0} imperfect

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

1.7 Mohs Hardness

5.5

3.5-4

1.8 Chemical Composition

Zn 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

MnCO₃

Willemite and Rhodochrosite Chemical Formula

While comparing Willemite and Rhodochrosite 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 Willemite and Rhodochrosite chemical formula.

Chemical formula of Willemite- Zn 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Rhodochrosite- MnCO₃

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Willemite and Rhodochrosite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Willemite and Rhodochrosite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Willemite and Rhodochrosite Optical Properties during the identification of gemstone. Specific gravity of Willemite is 3.0-3.3 whereas that of Rhodochrosite is 3.0-3.3.