Muscovite and Tourmaline Physical Properties

Muscovite

Tourmaline

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1 Physical Properties

1.1 Tenacity

Elastic

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.78-2.882.85-3.35

1 7.18

1.5 Fracture

Micaceous, Brittle

Uneven, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009)

1.6 Cleavage

Perfect on the {001}

Indistinct

1.7 Mohs Hardness

2-37-7.5

2 10

1.8 Chemical Composition

KAl 2AlSi 3O 10(OH) 2Walter Schumann , Gemstones of the world (2001) More from other references

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

Muscovite and Tourmaline Chemical Formula

While comparing Muscovite 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 Muscovite and Tourmaline chemical formula.

Chemical formula of Muscovite- KAl 2AlSi 3O 10(OH) 2Walter Schumann , Gemstones of the world (2001) More from other references
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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Muscovite and Tourmaline Specific Gravity

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