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Catapleiite
Catapleiite

Realgar
Realgar



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Catapleiite
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Realgar

Catapleiite and Realgar Optical Properties

Optical Properties

Luster

Vitreous
-

Pleochroism

-
Nearly colorless to pale golden yellowAnthony et al

Dispersion

0.010.06
0.005 1
👆🏻

Transparency

TransparentUlrich Henn and Claudio C. Milisenda
-

Refractive Index

1.590-1.6292.538-2.704
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Monoclinic Prismatic H-M Symbol (2/m) Space Group: B2/b (pseudo-HEX)
-

Birefringence

0.0390.166
0 0.296
👆🏻

Clarity

TransparentUlrich Henn and Claudio C. Milisenda
-

Catapleiite and Realgar Optic Character

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

Catapleiite and Realgar Transparency

Similar to their colors, Catapleiite and Realgar 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, Catapleiite is TransparentUlrich Henn and Claudio C. Milisenda while Catapleiite is TransparentUlrich Henn and Claudio C. Milisenda in appearance.