Phenakite and Apatite Physical Properties

Phenakite

Apatite

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Physical Properties

Tenacity

Brittle

Solubility

Durability

Specific Gravity

2.90-2.983.16-3.23

1 7.18

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Fracture

Conchoidal, ConchoidalWalter Schumann

Conchoidal, Uneven, Conchoidal to uneven

Cleavage

Distinct on {11 2 0}, imperfect on {10 1 1}

[0001] indistinct, [1010] indistinct

Mohs Hardness

7.5-85

2 10

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Chemical Composition

Be 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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

Phenakite and Apatite Chemical Formula

While comparing Phenakite 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 Phenakite and Apatite chemical formula.

Chemical formula of Phenakite- Be 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Apatite- Ca 5(PO 4) 3(F,OH,Cl)Walter Schumann , Gemstones of the world (2001) More from other references

Compare Colorless Gems

Phenakite Vs Orthoclase

Phenakite Vs Oligoclase

Phenakite Vs Muscovite

Phenakite and Apatite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Phenakite and Apatite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Phenakite and Apatite Optical Properties during the identification of gemstone. Specific gravity of Phenakite is 3.16-3.23 whereas that of Apatite is 3.16-3.23.