Tourmaline and Apophyllite Physical Properties

Tourmaline

Apophyllite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.85-3.35

2.30-2.50

1.5 Fracture

Uneven, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009)

Uneven, UnevenArthur Thomas, Gemstones (2009)

1.6 Cleavage

Indistinct

Perfect on (001)

1.7 Mohs Hardness

7-7.5

4.5-5

1.8 Chemical Composition

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

KCa 4Si 8O 20(F,OH) · 8H 2OUlrich Henn and Claudio C.

Tourmaline and Apophyllite Chemical Formula

While comparing Tourmaline and Apophyllite 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 Apophyllite 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 Apophyllite- KCa 4Si 8O 20(F,OH) · 8H 2OUlrich Henn and Claudio C.

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Tourmaline and Apophyllite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Tourmaline and Apophyllite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Tourmaline and Apophyllite Optical Properties during the identification of gemstone. Specific gravity of Tourmaline is 2.30-2.50 whereas that of Apophyllite is 2.30-2.50.