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Andradite
Andradite

Spodumene
Spodumene



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Andradite
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Spodumene

Andradite and Spodumene Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
Brittle
-
-
3.70-4.10
Conchoidal, Uneven
none
6.5-7
Ca 3Fe 2(SiO 4) 3Arthur Thomas , Gemstones (2009)
 
Brittle
insoluble
-
3.15-3.21
Uneven, Subconchoidal
Perfect prismatic, two directions {110} ∧ {1 1 0} at 87°
6-7
LiAlSi2O6

Andradite and Spodumene Chemical Formula

While comparing Andradite 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 Andradite and Spodumene chemical formula.

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Andradite and Spodumene Specific Gravity

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