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Cordierite
Cordierite

Ruby
Ruby



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X
Cordierite
X
Ruby

Cordierite and Ruby Optical Properties

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1 Optical Properties
1.1 Luster
Greasy, Vitreous
Vitreous, Adamantine, Vitreous, Adamantine
1.2 Pleochroism
X = pale yellow
Strong: purplish-red
1.3 Dispersion
NA0.02
Fluorite Optical Properties
0.007 1
1.4 Transparency
Not Available
Transparent, Translucent, Transparent to opaque
1.5 Refractive Index
Not Available1.762-1.778
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Orthorhombic
Trigonal
1.8 Birefringence
Not Available0.008
Achroite
0 0.296
1.9 Clarity
Not Available
Transparent

Cordierite and Ruby Optic Character

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

Similar to their colors, Cordierite and Ruby 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 Not Available while Cordierite is Not Available in appearance.