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Scheelite
Scheelite

Grandidierite
Grandidierite



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Scheelite
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Grandidierite

Scheelite and Grandidierite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous, Adamantine
Vitreous, Pearly
1.2 Pleochroism
Definite dichoric in yellow (yellow to orange-brown)
visible
1.3 Dispersion
0.04NA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Translucent, Transparent
Gemmological Tables (2004) More from other references
1.5 Refractive Index
1.918-1.9361.578-1.639
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
tetragonal
Orthorhombic
1.8 Birefringence
0.0160.037-0.039
Achroite
0 0.296
1.9 Clarity
Translucent
Gemmological Tables (2004) More from other references

Scheelite and Grandidierite Optic Character

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

Similar to their colors, Scheelite and Grandidierite 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.