×

Phenakite
Phenakite

Hibonite
Hibonite



ADD
Compare
X
Phenakite
X
Hibonite

Phenakite and Hibonite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous
Vitreous
1.2 Pleochroism
Distinct: colorless orangy-yellowHerve Nicolas Lazzarelli
O = brownish gray; E = gray
1.3 Dispersion
0.02NA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Gemmological Tables (2004) More from other references
Handbook of mineralogy (2001)
1.5 Refractive Index
1.650-1.6951.79-1.807
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Trigonal
Hexagonal
1.8 Birefringence
0.016Not Available
Achroite
0 0.296
1.9 Clarity
TransparentUlrich Henn and Claudio C. Milisenda
Handbook of mineralogy (2001)

Phenakite and Hibonite Optic Character

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

Phenakite and Hibonite Transparency

Similar to their colors, Phenakite 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, Phenakite is Gemmological Tables (2004) More from other references while Phenakite is Gemmological Tables (2004) More from other references in appearance.