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Forsterite
Forsterite

Pyrope Almandine
Pyrope Almandine



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Forsterite
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Pyrope Almandine

Forsterite and Pyrope Almandine Optical Properties

Optical Properties

Luster

Vitreous
-

Pleochroism

colorless.
-

Dispersion

0.020.02
0.005 1
👆🏻

Transparency

Transparent
TransparentGemdat.org

Refractive Index

1.635-1.6711.73-1.77
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Orthorhombic
-

Birefringence

0.033-0.042-9999
0 0.296
👆🏻

Clarity

Transparent
TransparentGemdat.org

Forsterite and Pyrope Almandine Optic Character

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

Forsterite and Pyrope Almandine Transparency

Similar to their colors, Forsterite and Pyrope Almandine 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, Forsterite is Transparent while Forsterite is Transparent in appearance.