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Pearl
Pearl

Aragonite
Aragonite



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Pearl
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Aragonite

Pearl and Aragonite Optical Properties

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1 Optical Properties
1.1 Luster
Pearly
Vitreous, Resinous
1.2 Pleochroism
AbsentWalter Schumann
StrongArthur Thomas
1.3 Dispersion
NoneNA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Translucent, Opaque
Transparent, Translucent
1.5 Refractive Index
1.52-1.661.525-1.686
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Orthorhombic
Orthorhombic
1.8 Birefringence
0.1560.155
Achroite
0 0.296
1.9 Clarity
Translucent
Transparent

Pearl and Aragonite Optic Character

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

Pearl and Aragonite Transparency

Similar to their colors, Pearl and Aragonite 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, Pearl is Opaque and Translucent while Pearl is Opaque and Translucent in appearance.