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Annabergite
Annabergite

Inderite
Inderite



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Annabergite
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Inderite

Annabergite and Inderite Optical Properties

Optical Properties

Luster

Subadamantine, Pearly
Vitreous, Pearly, Greasy

Pleochroism

-
-

Dispersion

0.03-
0.005 1
👆🏻

Transparency

-
-

Refractive Index

1.6221.488-1.505
1 3.25
👆🏻

Optic Character

-
Biaxial/+

Crystal System

monoclinic
Monoclinic Prismatic H-M Symbol (2/m) Space Group: P 21/a

Birefringence

0.0650.017
0 0.296
👆🏻

Clarity

-
TransparentUlrich Henn and Claudio C. Milisenda

Annabergite and Inderite Optic Character

Annabergite and Inderite optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Annabergite and Inderite 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 Annabergite and Inderite 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. Inderite has Biaxial/+ character.

Annabergite and Inderite Transparency

Similar to their colors, Annabergite and Inderite 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, Annabergite is while Annabergite is in appearance.