Jade and Spodumene Physical Properties

Jade

Spodumene

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

insoluble

1.3 Durability

Not Available

1.4 Specific Gravity

2.90-3.383.15-3.21

1 7.18

1.5 Fracture

Gemstones of the world (2001), Difficult, Splintery

Uneven, Subconchoidal, Gemstones (2009)

1.6 Cleavage

1 or 2,2 prismatic.

Perfect prismatic, two directions {110} ∧ {1 1 0} at 87°

1.7 Mohs Hardness

6-76-7

2 10

1.5 Chemical Composition

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

LiAlSi₂O₆

Jade and Spodumene Chemical Formula

While comparing Jade and Spodumene 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 Spodumene chemical formula.

Chemical formula of Jade- Nephrite: Ca₂(Mg,Fe)₅Si₈O₂₂(OH)₂ Jadeite: NaAlSi₂O₆
Chemical formula of Spodumene- LiAlSi₂O₆

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Jade and Spodumene Specific Gravity

Another important criteria for qualitative analysis of gemstones is Jade and Spodumene Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Jade and Spodumene Optical Properties during the identification of gemstone. Specific gravity of Jade is 3.15-3.21 whereas that of Spodumene is 3.15-3.21.