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Scheelite
Scheelite

Precious Opal
Precious Opal



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Scheelite
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Precious Opal

Scheelite and Precious 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
Not Available
1.8 Birefringence
0.016Not Available
Achroite
0 0.296
1.9 Clarity
Translucent
Transparent

Scheelite and Precious Opal Optic Character

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

Scheelite and Precious Opal Transparency

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