Tourmaline and Shigaite Physical Properties

Tourmaline

Shigaite

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1 Physical Properties

1.1 Tenacity

Not Available

Moderately ﬂexible

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.85-3.352.32

1 7.18

1.5 Fracture

Uneven, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009)

Flexible Flexible fragments.

1.6 Cleavage

Indistinct

Perfect on {0001}

1.7 Mohs Hardness

7-7.52

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.

Not Available

Tourmaline and Shigaite Chemical Formula

While comparing Tourmaline and Shigaite 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 Shigaite 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.

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Tourmaline and Shigaite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Tourmaline and Shigaite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Tourmaline and Shigaite Optical Properties during the identification of gemstone. Specific gravity of Tourmaline is 2.32 whereas that of Shigaite is 2.32.