Aragonite and Spodumene Physical Properties

Aragonite

Spodumene

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

Dilute acid

insoluble

1.3 Durability

Not Available

1.4 Specific Gravity

2.93-2.963.15-3.21

1 7.18

1.5 Fracture

Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle

Uneven, Subconchoidal, Gemstones (2009)

1.6 Cleavage

Distinct on {010}, imperfect {110} and {011}

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

1.7 Mohs Hardness

3.5-46-7

2 10

1.8 Chemical Composition

CaCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

LiAlSi₂O₆

Aragonite and Spodumene Chemical Formula

While comparing Aragonite 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 Aragonite and Spodumene chemical formula.

Chemical formula of Aragonite- CaCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Spodumene- LiAlSi₂O₆

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Aragonite and Spodumene Specific Gravity

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