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Rosasite
Rosasite

Forsterite
Forsterite



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X
Rosasite
X
Forsterite

Rosasite and Forsterite Optical Properties

Optical Properties

Luster

Pleochroism

Dispersion

Transparency

Refractive Index

Optic Character

Crystal System

Birefringence

Clarity

 
Silky, Vitreous
Strong: X = pale emerald green or colourless; Y = dark emerald green or pale blue; Z = dark emerald green or pale blue
0.03
-
1.672-1.688
-
monoclinic
0.139-0.143
-
 
Vitreous
colorless.
0.02
Transparent
1.635-1.671
-
Orthorhombic
0.033-0.042
Transparent

Rosasite and Forsterite Optic Character

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

Rosasite and Forsterite Transparency

Similar to their colors, Rosasite and Forsterite 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, Rosasite is while Rosasite is in appearance.