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Pyrophyllite
Pyrophyllite

Scheelite
Scheelite



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Pyrophyllite
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Scheelite

Pyrophyllite and Scheelite Optical Properties

1 Optical Properties
1.1 Luster
Pearly
Vitreous, Adamantine
1.2 Pleochroism
NilArthur Thomas
Definite dichoric in yellow (yellow to orange-brown)
1.3 Dispersion
NA0.04
Fluorite Optical Properties
0.007 1
1.4 Transparency
Translucent
Translucent, Transparent
1.5 Refractive Index
1.534-1.6011.918-1.936
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Not Available
tetragonal
1.8 Birefringence
0.0500.016
Achroite
0 0.296
1.9 Clarity
Translucent
Translucent

Pyrophyllite and Scheelite Optic Character

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

Pyrophyllite and Scheelite Transparency

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