Rhodochrosite and Tourmaline Physical Properties

Rhodochrosite

Tourmaline

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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

2.85-3.35

1.5 Fracture

Uneven, Conchoidal, Conchoidal to uneven, Brittle

Uneven, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009)

1.6 Cleavage

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

Indistinct

1.7 Mohs Hardness

3.5-4

7-7.5

1.8 Chemical Composition

MnCO₃

Tourmaline is a series of several different minerals with unique chemical formulas. See The chemical formula of Tourmaline for details.

Rhodochrosite and Tourmaline Chemical Formula

While comparing Rhodochrosite and Tourmaline 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 Tourmaline chemical formula.

Chemical formula of Rhodochrosite- MnCO₃
Chemical formula of Tourmaline- Tourmaline is a series of several different minerals with unique chemical formulas. See The chemical formula of Tourmaline for details.

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Rhodochrosite and Tourmaline Specific Gravity

Another important criteria for qualitative analysis of gemstones is Rhodochrosite and Tourmaline Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Rhodochrosite and Tourmaline Optical Properties during the identification of gemstone. Specific gravity of Rhodochrosite is 2.85-3.35 whereas that of Tourmaline is 2.85-3.35.