Apatite and Ekanite Physical Properties

Apatite

Ekanite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.16-3.23

3.28-3.32

1.5 Fracture

Conchoidal, Uneven, Conchoidal, Brittle, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal to uneven

Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Brittle, Uneven

1.6 Cleavage

[0001] indistinct, [1010] indistinct

{101} Distinct

1.7 Mohs Hardness

6-6.5

1.8 Chemical Composition

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

ThCa 2Si 8O 20Walter Schumann , Gemstones of the world (2001) More from other references

Apatite and Ekanite Chemical Formula

While comparing Apatite and Ekanite 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 Apatite and Ekanite chemical formula.

Chemical formula of Apatite- Ca 5(PO 4) 3(F,OH,Cl)Walter Schumann , Gemstones of the world (2001) More from other references
Chemical formula of Ekanite- ThCa 2Si 8O 20Walter Schumann , Gemstones of the world (2001) More from other references

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Apatite and Ekanite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Apatite and Ekanite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Apatite and Ekanite Optical Properties during the identification of gemstone. Specific gravity of Apatite is 3.28-3.32 whereas that of Ekanite is 3.28-3.32.