Onyx and Jade Physical Properties

Onyx

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

2.55-2.702.90-3.38

1 7.18

1.5 Fracture

Not Available

Gemstones of the world (2001), Difficult, Splintery

1.6 Cleavage

Indiscernible

1 or 2,2 prismatic.

1.7 Mohs Hardness

6.5-76-7

2 10

1.8 Chemical Composition

SiO₂

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

Onyx and Jade Chemical Formula

While comparing Onyx 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 Onyx and Jade chemical formula.

Chemical formula of Onyx- SiO₂
Chemical formula of Jade- Nephrite: Ca₂(Mg,Fe)₅Si₈O₂₂(OH)₂ Jadeite: NaAlSi₂O₆

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Onyx and Jade Specific Gravity

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