Tourmaline and Jade Physical Properties

Tourmaline

Jade

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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

2.90-3.38

1.5 Fracture

Uneven, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009)

Gemstones of the world (2001), Difficult, Splintery

1.6 Cleavage

Indistinct

1 or 2,2 prismatic.

1.7 Mohs Hardness

7-7.5

6-7

1.8 Chemical Composition

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

Nephrite: Ca₂(Mg,Fe)₅Si₈O₂₂(OH)₂ Jadeite: NaAlSi₂O₆

Tourmaline and Jade Chemical Formula

While comparing Tourmaline and Jade 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 Jade 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 Jade- Nephrite: Ca₂(Mg,Fe)₅Si₈O₂₂(OH)₂ Jadeite: NaAlSi₂O₆

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Tourmaline and Jade Specific Gravity

Another important criteria for qualitative analysis of gemstones is Tourmaline and Jade Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Tourmaline and Jade Optical Properties during the identification of gemstone. Specific gravity of Tourmaline is 2.90-3.38 whereas that of Jade is 2.90-3.38.