Spodumene and Petalite Physical Properties

Spodumene

Petalite

Add ⊕

1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

insoluble

1.3 Durability

Not Available

1.4 Specific Gravity

3.15-3.212.40

1 7.18

1.5 Fracture

Uneven, Subconchoidal, Gemstones (2009)

Subconchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Brittle, Conchoidal

1.6 Cleavage

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

Perfect on {001}, poor on {201} with 38.5° angle between the two

1.7 Mohs Hardness

6-76-6.5

2 10

1.8 Chemical Composition

LiAlSi₂O₆

LiAlSi 4O 10Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Spodumene and Petalite Chemical Formula

While comparing Spodumene and Petalite 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 Petalite chemical formula.

Chemical formula of Spodumene- LiAlSi₂O₆
Chemical formula of Petalite- LiAlSi 4O 10Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Compare Green Gemstones

Spodumene Vs Titanite Sphene

Spodumene Vs Tektite

Spodumene Vs Tavorite

Spodumene and Petalite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Spodumene and Petalite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Spodumene and Petalite Optical Properties during the identification of gemstone. Specific gravity of Spodumene is 2.40 whereas that of Petalite is 2.40.