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Achroite
Achroite

Aragonite
Aragonite



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Achroite
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Aragonite

Achroite and Aragonite Optical Properties

Optical Properties

Luster

-
Vitreous, Resinous

Pleochroism

-
StrongArthur Thomas

Dispersion

0.020.17
0.005 1
👆🏻

Transparency

Transparent, Translucent
Transparent, Translucent

Refractive Index

1.614-1.6661.525-1.686
1 3.25
👆🏻

Optic Character

-
-

Crystal System

-
Orthorhombic

Birefringence

0.014-0.0400.155
0 0.296
👆🏻

Clarity

Transparent
Transparent

Achroite and Aragonite Optic Character

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

Achroite and Aragonite Transparency

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