Scheelite and Andean Opal Optical Properties

Scheelite

Andean Opal

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1 Optical Properties

1.1 Luster

Vitreous, Adamantine

Not Available

1.2 Pleochroism

Definite dichoric in yellow (yellow to orange-brown)

Not Available

1.3 Dispersion

0.04NA

0.007 1

1.4 Transparency

Translucent, Transparent

Transparent

1.5 Refractive Index

1.918-1.936Not Available

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

tetragonal

Not Available

1.8 Birefringence

0.016Not Available

0 0.296

1.9 Clarity

Translucent

Transparent

Scheelite and Andean Opal Optic Character

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

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Scheelite and Andean Opal Transparency

Similar to their colors, Scheelite and Andean 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.