Tourmaline and Calcite Physical Properties

Tourmaline

Calcite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

Soluble

1.3 Durability

Not Available

1.4 Specific Gravity

2.85-3.352.67-2.73

1 7.18

1.5 Fracture

Uneven, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009)

Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009), Brittle, Conchoidal

1.6 Cleavage

Indistinct

Perfect on [10 1 1] three directions with angle of 74° 55

1.7 Mohs Hardness

7-7.53

2 10

1.8 Chemical Composition

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

CaCO 3Ulrich Henn and Claudio C.

Tourmaline and Calcite Chemical Formula

While comparing Tourmaline and Calcite 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 Tourmaline and Calcite chemical formula.

Chemical formula of Tourmaline- Tourmaline is a series of several different minerals with unique chemical formulas. See The chemical formula of Tourmaline for details.
Chemical formula of Calcite- CaCO 3Ulrich Henn and Claudio C.

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Tourmaline and Calcite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Tourmaline and Calcite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Tourmaline and Calcite Optical Properties during the identification of gemstone. Specific gravity of Tourmaline is 2.67-2.73 whereas that of Calcite is 2.67-2.73.