Sugilite and Apatite Physical Properties

Sugilite

Apatite

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

2.69-2.79

Conchoidal

Poor on {0001}

5.5-6.5

KNa 2(Fe3+ ,Mn3+ ,Al) 2Li 3Si 12O 30Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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

Sugilite and Apatite Chemical Formula

While comparing Sugilite 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 Sugilite and Apatite chemical formula.

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Sugilite and Apatite Specific Gravity

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