Jade and Sylvite Physical Properties

Jade

Sylvite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

Soluble

1.3 Durability

Not Available

1.4 Specific Gravity

2.90-3.381.993

1 7.18

1.5 Fracture

Gemstones of the world (2001), Difficult, Splintery

Uneven, Brittle

1.6 Cleavage

1 or 2,2 prismatic.

Perfect on [100], [010], [001]

1.7 Mohs Hardness

6-72.5

2 10

1.8 Chemical Composition

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

Not Available

Jade and Sylvite Chemical Formula

While comparing Jade and Sylvite 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 Sylvite chemical formula.

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

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Jade and Sylvite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Jade and Sylvite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Jade and Sylvite Optical Properties during the identification of gemstone. Specific gravity of Jade is 1.993 whereas that of Sylvite is 1.993.