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Beudantite
Beudantite

Helenite
Helenite



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Beudantite
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Helenite

Beudantite and Helenite Optical Properties

Optical Properties

Luster

Vitreous, Resinous
-

Pleochroism

visible
-

Dispersion

0.030.04
0.005 1
👆🏻

Transparency

-
-

Refractive Index

1.957-9999
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Trigonal
-

Birefringence

0.014-9999
0 0.296
👆🏻

Clarity

-
-

Beudantite and Helenite Optic Character

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

Beudantite and Helenite Transparency

Similar to their colors, Beudantite and Helenite 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, Beudantite is while Beudantite is in appearance.