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Spodumene
Spodumene

Pectolite
Pectolite



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Spodumene
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Pectolite

Spodumene and Pectolite Physical Properties

Physical Properties

Tenacity

Brittle
Brittle

Solubility

insoluble
-

Durability

-
-

Specific Gravity

3.15-3.212.74-2.90
1 7.18
👆🏻

Fracture

Uneven, Subconchoidal
Uneven, Splintery

Cleavage

Perfect prismatic, two directions {110} ∧ {1 1 0} at 87°
Perfect on {100} and {001}

Mohs Hardness

6-74.5-5
2 10
👆🏻

Chemical Composition

LiAlSi2O6
Ca 2NaHSi 3O 9Ulrich Henn and Claudio C.

Spodumene and Pectolite Chemical Formula

While comparing Spodumene and Pectolite 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 Pectolite chemical formula.

  • Chemical formula of Spodumene- LiAlSi2O6
  • Chemical formula of Pectolite- Ca 2NaHSi 3O 9Ulrich Henn and Claudio C.

Spodumene and Pectolite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Spodumene and Pectolite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Spodumene and Pectolite Optical Properties during the identification of gemstone. Specific gravity of Spodumene is 2.74-2.90 whereas that of Pectolite is 2.74-2.90.