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Aragonite
Aragonite

Ammolite
Ammolite



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Aragonite
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Ammolite

Aragonite and Ammolite 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
 
Silky, Vitreous
None
0.01
-
1.520-1.670
-
Trigonal
0.135-0.145
-

Aragonite and Ammolite Optic Character

Aragonite and Ammolite optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Aragonite and Ammolite Physical Properties 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 Ammolite 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 Ammolite Transparency

Similar to their colors, Aragonite and Ammolite 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 Transparent and Translucent while Aragonite is Transparent and Translucent in appearance.