Spodumene and Poldervaartite Physical Properties

Spodumene

Poldervaartite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

insoluble

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.15-3.212.91

1 7.18

1.5 Fracture

Uneven, Subconchoidal, Gemstones (2009)

Handbook of mineralogy (2001)

1.6 Cleavage

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

None

1.7 Mohs Hardness

6-7Not Available

2 10

1.8 Chemical Composition

LiAlSi₂O₆

(Ca,Mn2+ ) 2(SiO 3OH)(OH)Anthony et al , Handbook of Mineralogy (2001)

Spodumene and Poldervaartite Chemical Formula

While comparing Spodumene and Poldervaartite 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 Poldervaartite chemical formula.

Chemical formula of Spodumene- LiAlSi₂O₆
Chemical formula of Poldervaartite- (Ca,Mn2+ ) 2(SiO 3OH)(OH)Anthony et al , Handbook of Mineralogy (2001)

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Spodumene and Poldervaartite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Spodumene and Poldervaartite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Spodumene and Poldervaartite Optical Properties during the identification of gemstone. Specific gravity of Spodumene is 2.91 whereas that of Poldervaartite is 2.91.