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Fire Opal
Fire Opal

Emerald
Emerald



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Fire Opal
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Emerald

Fire Opal and Emerald Optical Properties

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1 Optical Properties
1.1 Luster
Not Available
Vitreous
1.2 Pleochroism
AbsentWalter Schumann
Strong dichroism: yellow green Lazzarelli
1.3 Dispersion
None0.01
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent, Translucent
Transparent, Translucent, Transparent to translucent
1.5 Refractive Index
1.370-1.4701.565-1.602
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Amorphous
Hexagonal
1.8 Birefringence
Not Available0.0040-0.0070
Achroite
0 0.296
1.9 Clarity
Transparent
Color grading system

Fire Opal and Emerald Optic Character

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

Similar to their colors, Fire Opal and Emerald 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.