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Aragonite
Aragonite

Spodumene
Spodumene



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Aragonite
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Spodumene

Aragonite and Spodumene Optical Properties

Optical Properties

Luster

Pleochroism

Dispersion

Transparency

Refractive Index

Optic Character

Crystal System

Birefringence

Clarity

 
Vitreous, Resinous
StrongArthur Thomas
0.17
Transparent, Translucent
1.525-1.686
-
Orthorhombic
0.155
Transparent
 
Vitreous
Strong in kunzite: α-purple
0.02
Transparent
1.657-1.681
-
monoclinic
0.014-0.018
-

Aragonite and Spodumene Optic Character

Aragonite and Spodumene optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Aragonite Vs Spodumene like crystallographic symmetry, pleochroism,etc. in the crystal. Some of the optical properties are refractive index, luster, optic character, pleochroism etc. Prominent among these is Aragonite and Spodumene optic character. You might have noticed your gemologist rotating the gemstone while testing it. Rotating a gemstone along its optic axis helps in determining its optic character.

Aragonite and Spodumene Transparency

Similar to their colors, Aragonite and Spodumene transparency can also be used as criteria for their primary identification. Although transparency cannot be the only criteria for gemstone identification, it can efficiently used in gemstone grading. Talking about their transparency, Aragonite is while Aragonite is in appearance.