Barite and Apatite Physical Properties

Barite

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

4.483.16-3.23

1 7.18

1.5 Fracture

Uneven

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

1.6 Cleavage

{010} Perfect, {210} Perfect, {010} Imperfect

[0001] indistinct, [1010] indistinct

1.7 Mohs Hardness

3-3.55

2 10

1.8 Chemical Composition

BaSO4

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

Barite and Apatite Chemical Formula

While comparing Barite 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 Barite and Apatite chemical formula.

Chemical formula of Barite- BaSO4
Chemical formula of Apatite- Ca 5(PO 4) 3(F,OH,Cl)Walter Schumann , Gemstones of the world (2001) More from other references

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Barite and Apatite Specific Gravity

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