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Pyromorphite
Pyromorphite

Spodumene
Spodumene



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Pyromorphite
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Spodumene

Pyromorphite and Spodumene Physical Properties

Physical Properties

Tenacity

Brittle
Brittle

Solubility

-
insoluble

Durability

-
-

Specific Gravity

6.5-7.13.15-3.21
1 7.18
👆🏻

Fracture

Uneven, Conchoidal
Uneven, Subconchoidal

Cleavage

Imperfect- [10 1 1]
Perfect prismatic, two directions {110} ∧ {1 1 0} at 87°

Mohs Hardness

3.5-46-7
2 10
👆🏻

Chemical Composition

Pb 5(PO 4) 3ClArthur Thomas , Gemstones (2009)
LiAlSi2O6

Pyromorphite and Spodumene Chemical Formula

While comparing Pyromorphite 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 Pyromorphite and Spodumene chemical formula.

  • Chemical formula of Pyromorphite- Pb 5(PO 4) 3ClArthur Thomas , Gemstones (2009)
  • Chemical formula of Spodumene- LiAlSi2O6

Pyromorphite and Spodumene Specific Gravity

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