Zinnwaldite and Apatite Physical Properties

Zinnwaldite

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

2.9-3.13.16-3.23

1 7.18

1.5 Fracture

Uneven

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

1.6 Cleavage

Perfect basal {001}

[0001] indistinct, [1010] indistinct

1.7 Mohs Hardness

3.5-4.05

2 10

1.8 Chemical Composition

Not Available

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

Zinnwaldite and Apatite Chemical Formula

While comparing Zinnwaldite 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 Zinnwaldite and Apatite 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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Zinnwaldite and Apatite Specific Gravity

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