Lazulite and Spodumene Physical Properties

Lazulite

Spodumene

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

insoluble

1.3 Durability

Not Available

1.4 Specific Gravity

3.04-3.173.15-3.21

1 7.18

1.5 Fracture

Uneven, Uneven, Gemstones of the world (2001) More from other references

Uneven, Subconchoidal, Gemstones (2009)

1.6 Cleavage

{001} Indistinct, {???} Indistinct

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

1.7 Mohs Hardness

5.56-7

2 10

1.8 Chemical Composition

(Mg,Fe)Al 2(PO 4) 2(OH) 2Arthur Thomas , Gemstones (2009) More from other references

LiAlSi₂O₆

Lazulite and Spodumene Chemical Formula

While comparing Lazulite 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 Lazulite and Spodumene chemical formula.

Chemical formula of Lazulite- (Mg,Fe)Al 2(PO 4) 2(OH) 2Arthur Thomas , Gemstones (2009) More from other references
Chemical formula of Spodumene- LiAlSi₂O₆

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Lazulite and Spodumene Specific Gravity

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