Jade and Williamsite Physical Properties

Jade

Williamsite

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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

2.90-3.382.51-2.63

1 7.18

1.5 Fracture

Gemstones of the world (2001), Difficult, Splintery

Conchoidal, Conchoidal, Handbook of mineralogy (2001)

1.6 Cleavage

1 or 2,2 prismatic.

Not Available

1.7 Mohs Hardness

6-74

2 10

1.8 Chemical Composition

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

(Mg,Fe2+ ) 3Si 2O 5(OH) 4Anthony et al , Handbook of mineralogy (2001)

Jade and Williamsite Chemical Formula

While comparing Jade and Williamsite 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 Jade and Williamsite chemical formula.

Chemical formula of Jade- Nephrite: Ca₂(Mg,Fe)₅Si₈O₂₂(OH)₂ Jadeite: NaAlSi₂O₆
Chemical formula of Williamsite- (Mg,Fe2+ ) 3Si 2O 5(OH) 4Anthony et al , Handbook of mineralogy (2001)

Compare Semi Precious Gemstones

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Jade and Williamsite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Jade and Williamsite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Jade and Williamsite Optical Properties during the identification of gemstone. Specific gravity of Jade is 2.51-2.63 whereas that of Williamsite is 2.51-2.63.