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Cordierite
Cordierite

Aragonite
Aragonite



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X
Cordierite
X
Aragonite

Cordierite and Aragonite Optical Properties

1 Optical Properties
1.1 Luster
Greasy, Vitreous
Vitreous, Resinous
1.2 Pleochroism
X = pale yellow
StrongArthur Thomas
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Not Available
Transparent, Translucent
1.5 Refractive Index
Not Available1.525-1.686
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Orthorhombic
Orthorhombic
1.8 Birefringence
Not Available0.155
Achroite
0 0.296
1.9 Clarity
Not Available
Transparent

Cordierite and Aragonite Optic Character

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

Similar to their colors, Cordierite and Aragonite 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.