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Creedite
Creedite

Anhydrite
Anhydrite



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Creedite
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Anhydrite

Creedite and Anhydrite Optical Properties

Optical Properties

Luster

Vitreous
Pearly, Greasy

Pleochroism

-
For violet varieties

Dispersion

0.020.01
0.005 1
👆🏻

Transparency

Transparent, Translucent
Transparent

Refractive Index

1.461-1.4851.570-1.614
1 3.25
👆🏻

Optic Character

-
-

Crystal System

monoclinic
Orthorhombic

Birefringence

0.0240.042-0.044
0 0.296
👆🏻

Clarity

Transparent
Transparent

Creedite and Anhydrite Optic Character

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

Creedite and Anhydrite Transparency

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