Willemite and Jade Physical Properties

Willemite

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

3.89-4.182.90-3.38

1 7.18

1.5 Fracture

Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Uneven

Gemstones of the world (2001), Difficult, Splintery

1.6 Cleavage

{0001}, {11 2 0} imperfect

1 or 2,2 prismatic.

1.7 Mohs Hardness

5.56-7

2 10

1.8 Chemical Composition

Zn 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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

Willemite and Jade Chemical Formula

While comparing Willemite 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 Willemite and Jade chemical formula.

Chemical formula of Willemite- Zn 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Jade- Nephrite: Ca₂(Mg,Fe)₅Si₈O₂₂(OH)₂ Jadeite: NaAlSi₂O₆

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Willemite and Jade Specific Gravity

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