Montebrasite and Apatite Physical Properties

Montebrasite

Apatite

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

2.98-3.103.16-3.23

1 7.18

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Fracture

Uneven, Conchoidal

Conchoidal, Uneven, Conchoidal to uneven

Cleavage

{100} Perfect, {110} Good, {011} Distinct

[0001] indistinct, [1010] indistinct

Mohs Hardness

5.5-65

2 10

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Chemical Composition

LiAl(PO 4)(OH,F)Walter Schumann , Gemstones of the world (2001) More from other references

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

Montebrasite and Apatite Chemical Formula

While comparing Montebrasite 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 Montebrasite and Apatite chemical formula.

Chemical formula of Montebrasite- LiAl(PO 4)(OH,F)Walter Schumann , Gemstones of the world (2001) 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

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Montebrasite and Apatite Specific Gravity

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