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Tourmaline
Tourmaline

Eilat stone
Eilat stone



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Tourmaline
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Eilat stone

Tourmaline and Eilat stone Physical Properties

Physical Properties

Tenacity

-
-

Solubility

-
-

Durability

-
-

Specific Gravity

2.85-3.35-9999
1 7.18
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Fracture

Uneven, Conchoidal
-

Cleavage

Indistinct
-

Mohs Hardness

7-7.5-9999
2 10
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Chemical Composition

Tourmaline is a series of several different minerals with unique chemical formulas. See The chemical formula of Tourmaline for details.
Cu3(PO4)(OH)3

Tourmaline and Eilat stone Chemical Formula

While comparing Tourmaline and Eilat stone 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 Eilat stone 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 Eilat stone- Cu3(PO4)(OH)3

Tourmaline and Eilat stone Specific Gravity

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