Plumbogummite and Spodumene Physical Properties

Plumbogummite

Spodumene

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

Soluble

insoluble

1.3 Durability

Not Available

1.4 Specific Gravity

4.0143.15-3.21

1 7.18

1.5 Fracture

Uneven, Conchoidal

Uneven, Subconchoidal, Gemstones (2009)

1.6 Cleavage

None

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

1.7 Mohs Hardness

4-56-7

2 10

1.8 Chemical Composition

Not Available

LiAlSi₂O₆

Plumbogummite and Spodumene Chemical Formula

While comparing Plumbogummite 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 Plumbogummite and Spodumene chemical formula.

Chemical formula of Spodumene- LiAlSi₂O₆

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Plumbogummite and Spodumene Specific Gravity

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