Rhodochrosite and Forsterite Physical Properties

Rhodochrosite

Forsterite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.0-3.3

3.23-3.26

1.5 Fracture

Uneven, Conchoidal, Conchoidal to uneven, Brittle

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

1.6 Cleavage

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

Perfect on {010} imperfect on {100}

1.7 Mohs Hardness

3.5-4

6.5-7

1.8 Chemical Composition

MnCO₃

Mg 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006)

Rhodochrosite and Forsterite Chemical Formula

While comparing Rhodochrosite and Forsterite 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 Forsterite chemical formula.

Chemical formula of Rhodochrosite- MnCO₃
Chemical formula of Forsterite- Mg 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006)

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Rhodochrosite and Forsterite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Rhodochrosite and Forsterite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Rhodochrosite and Forsterite Optical Properties during the identification of gemstone. Specific gravity of Rhodochrosite is 3.23-3.26 whereas that of Forsterite is 3.23-3.26.