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Anhydrite
Anhydrite

Spodumene
Spodumene



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Anhydrite
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Spodumene

Anhydrite and Spodumene Physical Properties

1 Physical Properties
1.1 Tenacity
Brittle
Brittle
1.2 Solubility
Not Available
insoluble
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
2.90-2.98
3.15-3.21
1.5 Fracture
Conchoidal, Brittle, Conchoidal, UnevenArthur Thomas, Gemstones (2009), Brittle, Conchoidal
Uneven, Subconchoidal, Gemstones (2009)
1.6 Cleavage
Rare tabular and prismatic crystals. Usually occurs as fibrous, parallel veins that break off into cleavage fragments.
Perfect prismatic, two directions {110} ∧ {1 1 0} at 87°
1.7 Mohs Hardness
3.5
6-7
1.8 Chemical Composition
CaSO 4Michael O’Donoghue , Gems, Sixth edition (2006) More from other references
LiAlSi2O6

Anhydrite and Spodumene Chemical Formula

While comparing Anhydrite 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 Anhydrite and Spodumene chemical formula.

  • Chemical formula of Anhydrite- CaSO 4Michael O’Donoghue , Gems, Sixth edition (2006) More from other references
  • Chemical formula of Spodumene- LiAlSi2O6

Anhydrite and Spodumene Specific Gravity

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