×

Benitoite
Benitoite

Cordierite
Cordierite



ADD
Compare
X
Benitoite
X
Cordierite

Benitoite and Cordierite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous
Greasy, Vitreous
1.2 Pleochroism
O = colorless; E = purple
X = pale yellow
1.3 Dispersion
0.04NA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent
Not Available
1.5 Refractive Index
1.757-1.804Not Available
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Hexagonal
Orthorhombic
1.8 Birefringence
0.047Not Available
Achroite
0 0.296
1.9 Clarity
Transparent
Not Available

Benitoite and Cordierite Optic Character

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

Benitoite and Cordierite Transparency

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