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Friedelite
Friedelite

Marialite
Marialite



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Friedelite
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Marialite

Friedelite and Marialite Optical Properties

Optical Properties

Luster

-
Vitreous, Pearly, Resinous

Pleochroism

-
-

Dispersion

0.040.02
0.005 1
👆🏻

Transparency

Translucent
Transparent, Translucent

Refractive Index

1.627-1.6631.540-1.550
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Monoclinic Prismatic H-M Symbol (2/m) Space Group: C 2/m
tetragonal

Birefringence

0.032-0.0350.004-0.008
0 0.296
👆🏻

Clarity

Translucent
Transparent

Friedelite and Marialite Optic Character

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

Friedelite and Marialite Transparency

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