×

Opal
Opal

Hexagonite
Hexagonite



ADD
Compare
X
Opal
X
Hexagonite

Opal and Hexagonite Optical Properties

Add ⊕
1 Optical Properties
1.1 Luster
Vitreous, Pearly
Vitreous
1.2 Pleochroism
None
bluish–red
1.3 Dispersion
NoneNA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent, Translucent, Transparent to translucent
Transparent
1.5 Refractive Index
1.37-1.521.599-1.637
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Trigonal
Not Available
1.8 Birefringence
Not Available0.019-0.028
Achroite
0 0.296
1.9 Clarity
Transparent
Transparent

Opal and Hexagonite Optic Character

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

Opal and Hexagonite Transparency

Similar to their colors, Opal and Hexagonite 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, Opal is Translucent, Transparent and Transparent to translucent while Opal is Translucent, Transparent and Transparent to translucent in appearance.