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Scheelite
Scheelite

Fire Opal
Fire Opal



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Scheelite
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Fire Opal

Scheelite and Fire Opal Optical Properties

1 Optical Properties
1.1 Luster
Vitreous, Adamantine
Not Available
1.2 Pleochroism
Definite dichoric in yellow (yellow to orange-brown)
AbsentWalter Schumann
1.3 Dispersion
0.04None
Fluorite Optical Properties
0.007 1
1.4 Transparency
Translucent, Transparent
Transparent, Translucent
1.5 Refractive Index
1.918-1.9361.370-1.470
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
tetragonal
Amorphous
1.8 Birefringence
0.016Not Available
Achroite
0 0.296
1.9 Clarity
Translucent
Transparent

Scheelite and Fire Opal Optic Character

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

Scheelite and Fire Opal Transparency

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