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Cordierite
Cordierite

Moonstone
Moonstone



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X
Cordierite
X
Moonstone

Cordierite and Moonstone Optical Properties

Optical Properties

Luster

Pleochroism

Dispersion

Transparency

Refractive Index

Optic Character

Crystal System

Birefringence

Clarity

 
Greasy, Vitreous
X = pale yellow
0.01
-
-9999
-
Orthorhombic
-9999
-
 
Pearly
-
0.01
Transparent, Transparent to translucent
1.518-1.527
-
monoclinic
0.006-0.007
Transparent

Cordierite and Moonstone Optic Character

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

Cordierite and Moonstone Transparency

Similar to their colors, Cordierite and Moonstone 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, Cordierite is while Cordierite is in appearance.