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Scheelite
Scheelite

Villiaumite
Villiaumite



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Scheelite
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Villiaumite

Scheelite and Villiaumite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous, Adamantine
Not Available
1.2 Pleochroism
Definite dichoric in yellow (yellow to orange-brown)
Yellow to pink/deep carmineMichael O’Donoghue
1.3 Dispersion
0.04NA
Fluorite Optical Properties
0.007 1
1.14 Transparency
Translucent, Transparent
Gemmological Tables (2004) More from other references
1.15 Refractive Index
1.918-1.9361.328-1.332
Agate Opal
1 3.25
1.16 Optic Character
Not Available
Not Available
1.17 Crystal System
tetragonal
Not Available
1.18 Birefringence
0.016Not Available
Achroite
0 0.296
2.5 Clarity
Translucent
TransparentUlrich Henn and Claudio C. Milisenda

Scheelite and Villiaumite Optic Character

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

Similar to their colors, Scheelite and Villiaumite 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.