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Alabaster
Alabaster

Selenite
Selenite



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Alabaster
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Selenite

Alabaster and Selenite Optical Properties

Optical Properties

Luster

-
Vitreous

Pleochroism

-
-

Dispersion

-0.01
0.005 1
👆🏻

Transparency

Translucent
Transparent

Refractive Index

1.520-1.530-9999
1 3.25
👆🏻

Optic Character

-
-

Crystal System

-
monoclinic

Birefringence

0.010-9999
0 0.296
👆🏻

Clarity

Translucent
Transparent

Alabaster and Selenite Optic Character

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

Alabaster and Selenite Transparency

Similar to their colors, Alabaster and Selenite 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, Alabaster is Translucent while Alabaster is Translucent in appearance.