Spodumene and Anorthite Physical Properties

Spodumene

Anorthite

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

insoluble

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.15-3.212.77

1 7.18

1.5 Fracture

Uneven, Subconchoidal, Gemstones (2009)

Uneven, Uneven, Gems, Sixth Edition (2006)

1.6 Cleavage

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

Perfect [001] good [010] poor [110]

1.7 Mohs Hardness

6-76-6.5

2 10

1.8 Chemical Composition

LiAlSi₂O₆

CaAl 2Si 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)

Spodumene and Anorthite Chemical Formula

While comparing Spodumene and Anorthite 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 Spodumene and Anorthite chemical formula.

Chemical formula of Spodumene- LiAlSi₂O₆
Chemical formula of Anorthite- CaAl 2Si 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)

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Spodumene and Anorthite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Spodumene and Anorthite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Spodumene and Anorthite Optical Properties during the identification of gemstone. Specific gravity of Spodumene is 2.77 whereas that of Anorthite is 2.77.