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Fire Opal
Fire Opal

Pleonaste
Pleonaste



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Fire Opal
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Pleonaste

Fire Opal and Pleonaste Optical Properties

1 Optical Properties
1.1 Luster
Not Available
Not Available
1.2 Pleochroism
AbsentWalter Schumann
Not Available
1.3 Dispersion
NoneNA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent, Translucent
Gemmological Tables (2004)
1.5 Refractive Index
1.370-1.4701.780
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Amorphous
Not Available
1.8 Birefringence
Not AvailableNot Available
Achroite
0 0.296
1.9 Clarity
Transparent
Gemmological Tables (2004)

Fire Opal and Pleonaste Optic Character

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

Fire Opal and Pleonaste Transparency

Similar to their colors, Fire Opal and Pleonaste 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, Fire Opal is Translucent and Transparent while Fire Opal is Translucent and Transparent in appearance.