Apatite and Langbeinite Physical Properties

Apatite

Langbeinite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

Slowly dissolves in water

1.3 Durability

Not Available

1.4 Specific Gravity

3.16-3.23

Not Available

1.5 Fracture

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

Conchoidal, Brittle

1.6 Cleavage

[0001] indistinct, [1010] indistinct

None

1.7 Mohs Hardness

3.5-4

1.8 Chemical Composition

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

Not Available

Apatite and Langbeinite Chemical Formula

While comparing Apatite and Langbeinite 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 Langbeinite 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

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Apatite and Langbeinite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Apatite and Langbeinite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Apatite and Langbeinite Optical Properties during the identification of gemstone. Specific gravity of Apatite is Not Available whereas that of Langbeinite is Not Available.