Brazilianite and Apatite Physical Properties

Brazilianite

Apatite

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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

2.98-2.993.16-3.23

1 7.18

1.5 Fracture

Conchoidal, Gems

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

1.6 Cleavage

(010) Distinct to good

[0001] indistinct, [1010] indistinct

1.7 Mohs Hardness

5.55

2 10

1.8 Chemical Composition

NaAl 3(PO 4) 2(OH) 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

Brazilianite and Apatite Chemical Formula

While comparing Brazilianite 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 Brazilianite and Apatite chemical formula.

Chemical formula of Brazilianite- NaAl 3(PO 4) 2(OH) 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 Green Gemstones

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Brazilianite and Apatite Specific Gravity

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