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Spodumene
Spodumene

Chalcedony
Chalcedony



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Spodumene
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Chalcedony

Spodumene and Chalcedony Physical Properties

Physical Properties

Tenacity

Brittle
-

Solubility

insoluble
Soluble

Durability

-
-

Specific Gravity

3.15-3.212.55-2.70
1 7.18
👆🏻

Fracture

Uneven, Subconchoidal
Uneven, Splintery, Conchoidal

Cleavage

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

Mohs Hardness

6-76.5-7
2 10
👆🏻

Chemical Composition

LiAlSi2O6
SiO2

Spodumene and Chalcedony Chemical Formula

While comparing Spodumene and Chalcedony 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 Chalcedony chemical formula.

  • Chemical formula of Spodumene- LiAlSi2O6
  • Chemical formula of Chalcedony- SiO2

Spodumene and Chalcedony Specific Gravity

Another important criteria for qualitative analysis of gemstones is Spodumene and Chalcedony Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Spodumene and Chalcedony Optical Properties during the identification of gemstone. Specific gravity of Spodumene is 2.55-2.70 whereas that of Chalcedony is 2.55-2.70.