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Fire Agate
Fire Agate

Precious Opal
Precious Opal



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Fire Agate
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Precious Opal

Fire Agate and Precious Opal Optical Properties

1 Optical Properties
1.1 Luster
Waxy, Vitreous, Greasy, Silky
Not Available
1.2 Pleochroism
AbsentWalter Schumann
AbsentWalter Schumann
1.3 Dispersion
NoneNone
Fluorite Optical Properties
0.007 1
1.4 Transparency
Translucent
Transparent, Translucent
1.5 Refractive Index
1.530-1.5431.370-1.470
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Trigonal
Not Available
1.8 Birefringence
0.003-0.009Not Available
Achroite
0 0.296
1.9 Clarity
Translucent
Transparent

Fire Agate and Precious Opal Optic Character

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

Similar to their colors, Fire Agate and Precious Opal 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 Agate is Translucent while Fire Agate is Translucent in appearance.