Spodumene and Star Sapphire Physical Properties

Spodumene

Star Sapphire

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

insoluble

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.15-3.213.90-4.05

1 7.18

1.5 Fracture

Uneven, Subconchoidal, Gemstones (2009)

Not Available

1.6 Cleavage

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

Not Available

1.7 Mohs Hardness

6-7Not Available

2 10

1.8 Chemical Composition

LiAlSi₂O₆

Al 2O 3Ulrich Henn and Claudio C.

Spodumene and Star Sapphire Chemical Formula

While comparing Spodumene and Star Sapphire 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 Star Sapphire chemical formula.

Chemical formula of Spodumene- LiAlSi₂O₆
Chemical formula of Star Sapphire- Al 2O 3Ulrich Henn and Claudio C.

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Spodumene and Star Sapphire Specific Gravity

Another important criteria for qualitative analysis of gemstones is Spodumene and Star Sapphire Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Spodumene and Star Sapphire Optical Properties during the identification of gemstone. Specific gravity of Spodumene is 3.90-4.05 whereas that of Star Sapphire is 3.90-4.05.