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Cordierite
Cordierite

Verdite
Verdite



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X
Cordierite
X
Verdite

Cordierite and Verdite Optical Properties

1 Optical Properties
1.1 Luster
Greasy, Vitreous
Vitreous, Silky
1.2 Pleochroism
X = pale yellow
Extreme
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Not Available
Translucent
1.5 Refractive Index
Not Available1.580
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Orthorhombic
Monoclinic Prismatic H-M Symbol (2/m) Space Group: C 2/c
1.8 Birefringence
Not AvailableNot Available
Achroite
0 0.296
1.9 Clarity
Not Available
Translucent

Cordierite and Verdite Optic Character

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

Similar to their colors, Cordierite and Verdite 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.