Tourmaline and Friedelite Physical Properties

Tourmaline

Friedelite

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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

2.85-3.353.06-3.19

1 7.18

1.5 Fracture

Uneven, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009)

UnevenArthur Thomas, Gemstones (2009) Tough, UnevenArthur Thomas, Gemstones (2009) Tough, Brittle, Uneven

1.6 Cleavage

Indistinct

{010} Perfect

1.7 Mohs Hardness

7-7.54-5

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.

Mn 8Si 6O 15(OH,Cl) 10Ulrich Henn and Claudio C.

Tourmaline and Friedelite Chemical Formula

While comparing Tourmaline and Friedelite 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 Friedelite 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 Friedelite- Mn 8Si 6O 15(OH,Cl) 10Ulrich Henn and Claudio C.

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Tourmaline and Friedelite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Tourmaline and Friedelite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Tourmaline and Friedelite Optical Properties during the identification of gemstone. Specific gravity of Tourmaline is 3.06-3.19 whereas that of Friedelite is 3.06-3.19.