Muscovite and Apatite Physical Properties

Muscovite

Apatite

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1 Physical Properties

1.1 Tenacity

Elastic

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.78-2.883.16-3.23

1 7.18

1.5 Fracture

Micaceous, Brittle

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

1.6 Cleavage

Perfect on the {001}

[0001] indistinct, [1010] indistinct

1.7 Mohs Hardness

2-35

2 10

1.8 Chemical Composition

KAl 2AlSi 3O 10(OH) 2Walter 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

Muscovite and Apatite Chemical Formula

While comparing Muscovite 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 Muscovite and Apatite chemical formula.

Chemical formula of Muscovite- KAl 2AlSi 3O 10(OH) 2Walter 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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Muscovite and Apatite Specific Gravity

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