×

Gibbsite
Gibbsite

Riebeckite
Riebeckite



ADD
Compare
X
Gibbsite
X
Riebeckite

Gibbsite and Riebeckite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous, Pearly
Vitreous, Silky
1.2 Pleochroism
colorless.
X = blue
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Not Available
Not Available
1.5 Refractive Index
Not Available1.680-1.698
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
monoclinic
monoclinic
1.8 Birefringence
Not Available0.005-0.008
Achroite
0 0.296
1.9 Clarity
Not Available
Not Available

Gibbsite and Riebeckite Optic Character

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

Gibbsite and Riebeckite Transparency

Similar to their colors, Gibbsite and Riebeckite 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, Gibbsite is Not Available while Gibbsite is Not Available in appearance.