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Apatite
Apatite

Albite
Albite



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Apatite
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Albite

Apatite and Albite Physical Properties

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1 Physical Properties
2.1 Tenacity
Not Available
Brittle
2.4 Solubility
Not Available
Not Available
2.6 Durability
Not Available
Not Available
2.8 Specific Gravity
3.16-3.232.60-2.65
Amber
1 7.18
2.9 Fracture
Conchoidal, Uneven, Conchoidal, Brittle, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal to uneven
Uneven, Uneven, Gems, Sixth Edition (2006), Uneven, Conchoidal
2.10 Cleavage
[0001] indistinct, [1010] indistinct
Perfect on {001}, very good on {010}, imperfect on {110}
2.11 Mohs Hardness
56-6.5
Amber
2 10
2.15 Chemical Composition
Ca 5(PO 4) 3(F,OH,Cl)Walter Schumann , Gemstones of the world (2001) More from other references
NaAlSi 3O 8Michael O’Donoghue , Gems, Sixth Edition (2006)

Apatite and Albite Chemical Formula

While comparing Apatite and Albite 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 Albite 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 Albite- NaAlSi 3O 8Michael O’Donoghue , Gems, Sixth Edition (2006)

Apatite and Albite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Apatite and Albite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Apatite and Albite Optical Properties during the identification of gemstone. Specific gravity of Apatite is 2.60-2.65 whereas that of Albite is 2.60-2.65.