Benitoite and Tourmaline Physical Properties

Benitoite

Tourmaline

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Insoluble: HCl

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.61-3.682.85-3.35

1 7.18

1.5 Fracture

Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle

Uneven, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009)

1.6 Cleavage

[10 1 1] poor

Indistinct

1.7 Mohs Hardness

6-6.57-7.5

2 10

1.8 Chemical Composition

BaTiSi 3O 9Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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

Benitoite and Tourmaline Chemical Formula

While comparing Benitoite 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 Benitoite and Tourmaline chemical formula.

Chemical formula of Benitoite- BaTiSi 3O 9Michael OâDonoghue , Gems, Sixth Edition (2006) 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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Benitoite and Tourmaline Specific Gravity

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