Glaucophane and Tourmaline Physical Properties

Glaucophane

Tourmaline

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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

3-3.152.85-3.35

1 7.18

1.5 Fracture

Conchoidal, Brittle, Conchoidal

Uneven, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009)

1.6 Cleavage

Good on [110] and on [001]

Indistinct

1.7 Mohs Hardness

6.0-6.57-7.5

2 10

1.8 Chemical Composition

[ ]Na2(Mg3Al2)Si8O22(OH)2

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

Glaucophane and Tourmaline Chemical Formula

While comparing Glaucophane 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 Glaucophane and Tourmaline chemical formula.

Chemical formula of Glaucophane- [ ]Na2(Mg3Al2)Si8O22(OH)2
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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Glaucophane and Tourmaline Specific Gravity

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