Marialite and Helenite Optical Properties

Marialite

Helenite

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1 Optical Properties

1.1 Luster

Vitreous, Pearly, Resinous

Not Available

1.2 Pleochroism

Not Available

1.3 Dispersion

NANA

0.007 1

1.4 Transparency

Transparent, Translucent

Not Available

1.5 Refractive Index

1.540-1.550Not Available

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

tetragonal

Not Available

1.8 Birefringence

0.004-0.008Not Available

0 0.296

1.9 Clarity

Transparent

Not Available

Marialite and Helenite Optic Character

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

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Marialite and Helenite Transparency

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