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Opal
Opal

Morganite
Morganite



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Opal
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Morganite

Opal and Morganite Optical Properties

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1 Optical Properties
1.1 Luster
Vitreous, Pearly
Vitreous
1.2 Pleochroism
None
Distinct: pale pink bluish-pinkHerve Nicolas Lazzarelli
1.3 Dispersion
NoneNA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent, Translucent, Transparent to translucent
Transparent, Translucent, Transparent to translucent
1.5 Refractive Index
1.37-1.521.573-1.600
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Trigonal
Hexagonal
1.8 Birefringence
Not Available0.005-0.009
Achroite
0 0.296
1.9 Clarity
Transparent
Transparent to translucent

Opal and Morganite Optic Character

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

Similar to their colors, Opal and Morganite 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.