Prasiolite and Tourmaline Physical Properties

Prasiolite

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

2.652.85-3.35

1 7.18

1.5 Fracture

Conchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001)

Uneven, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009)

1.6 Cleavage

3,1

Indistinct

1.7 Mohs Hardness

77-7.5

2 10

1.8 Chemical Composition

SiO 2Ulrich Henn and Claudio C.

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

Prasiolite and Tourmaline Chemical Formula

While comparing Prasiolite 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 Prasiolite and Tourmaline chemical formula.

Chemical formula of Prasiolite- SiO 2Ulrich Henn and Claudio C.
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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Prasiolite and Tourmaline Specific Gravity

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