Adularia and Spodumene Physical Properties

Adularia

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

2.54-2.613.15-3.21

1 7.18

1.5 Fracture

Not Available

Uneven, Subconchoidal, Gemstones (2009)

1.6 Cleavage

Not Available

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

1.7 Mohs Hardness

66-7

2 10

1.8 Chemical Composition

KAlSi 3O 8Michael OâDonoghue , Gems, Sixth Edition (2006)

LiAlSi₂O₆

Adularia and Spodumene Chemical Formula

While comparing Adularia 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 Adularia and Spodumene chemical formula.

Chemical formula of Adularia- KAlSi 3O 8Michael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Spodumene- LiAlSi₂O₆

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Adularia and Spodumene Specific Gravity

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