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Spodumene
Spodumene

Hibonite
Hibonite



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Spodumene and Hibonite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous
Vitreous
1.2 Pleochroism
Strong in kunzite: α-purple
O = brownish gray; E = gray
1.3 Dispersion
0.02NA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent
Handbook of mineralogy (2001)
1.5 Refractive Index
1.657-1.6811.79-1.807
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
monoclinic
Hexagonal
1.8 Birefringence
0.014-0.018Not Available
Achroite
0 0.296
1.9 Clarity
Gems
Handbook of mineralogy (2001)

Spodumene and Hibonite Optic Character

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

Spodumene and Hibonite Transparency

Similar to their colors, Spodumene and Hibonite 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, Spodumene is Transparent while Spodumene is Transparent in appearance.