Rubellite and Apatite Physical Properties

Rubellite

Apatite

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

3.01-3.06

Conchoidal

Indiscernible

7-7.5

Na(Li 1.5Al 1.5)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012) Formula given for elbaite.

3.16-3.23

Conchoidal, Uneven, Conchoidal to uneven

[0001] indistinct, [1010] indistinct

Ca 5(PO 4) 3(F,OH,Cl)Walter Schumann , Gemstones of the world (2001) More from other references

Rubellite and Apatite Chemical Formula

While comparing Rubellite and Apatite 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 Rubellite and Apatite chemical formula.

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Rubellite Vs Serendibite

Rubellite Vs Shattuckite

Rubellite Vs Sillimanite

Rubellite and Apatite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Rubellite and Apatite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Rubellite Vs Apatite during the identification of gemstone. Specific gravity of Rubellite is whereas that of Apatite is .