Apatite and Jade Physical Properties

Apatite

Jade

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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

3.16-3.232.90-3.38

1 7.18

1.5 Fracture

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

Gemstones of the world (2001), Difficult, Splintery

1.6 Cleavage

[0001] indistinct, [1010] indistinct

1 or 2,2 prismatic.

1.7 Mohs Hardness

56-7

2 10

1.8 Chemical Composition

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

Nephrite: Ca₂(Mg,Fe)₅Si₈O₂₂(OH)₂ Jadeite: NaAlSi₂O₆

Apatite and Jade Chemical Formula

While comparing Apatite and Jade 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 Jade 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
Chemical formula of Jade- Nephrite: Ca₂(Mg,Fe)₅Si₈O₂₂(OH)₂ Jadeite: NaAlSi₂O₆

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Apatite and Jade Specific Gravity

Another important criteria for qualitative analysis of gemstones is Apatite and Jade Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Apatite and Jade Optical Properties during the identification of gemstone. Specific gravity of Apatite is 2.90-3.38 whereas that of Jade is 2.90-3.38.