Kyanite and Spodumene Physical Properties

Kyanite

Spodumene

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

Not Available

insoluble

1.3 Durability

Not Available

1.4 Specific Gravity

3.53-3.653.15-3.21

1 7.18

1.5 Fracture

Splintery, Brittle, Metallic

Uneven, Subconchoidal, Gemstones (2009)

1.6 Cleavage

[100] perfect [010] imperfect with 79° angle between

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

1.7 Mohs Hardness

4-76-7

2 10

1.8 Chemical Composition

Not Available

LiAlSi₂O₆

Kyanite and Spodumene Chemical Formula

While comparing Kyanite 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 Kyanite and Spodumene chemical formula.

Chemical formula of Spodumene- LiAlSi₂O₆

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Kyanite and Spodumene Specific Gravity

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