Jade and Gibbsite Physical Properties

Jade

Gibbsite

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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

2.90-3.382.35

1 7.18

1.5 Fracture

Gemstones of the world (2001), Difficult, Splintery

Fibrous, Difficult, Fibrous

1.6 Cleavage

1 or 2,2 prismatic.

{001} Perfect

1.7 Mohs Hardness

6-72.5-3

2 10

1.8 Chemical Composition

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

Al(OH)3

Jade and Gibbsite Chemical Formula

While comparing Jade and Gibbsite 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 Gibbsite chemical formula.

Chemical formula of Jade- Nephrite: Ca₂(Mg,Fe)₅Si₈O₂₂(OH)₂ Jadeite: NaAlSi₂O₆
Chemical formula of Gibbsite- Al(OH)3

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Jade and Gibbsite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Jade and Gibbsite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Jade and Gibbsite Optical Properties during the identification of gemstone. Specific gravity of Jade is 2.35 whereas that of Gibbsite is 2.35.