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Prehnite
Prehnite

Scheelite
Scheelite



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Prehnite
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Scheelite

Prehnite and Scheelite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous
Vitreous, Adamantine
1.2 Pleochroism
AbsentWalter Schumann
Definite dichoric in yellow (yellow to orange-brown)
1.3 Dispersion
None0.04
Fluorite Optical Properties
0.007 1
1.4 Transparency
Translucent
Translucent, Transparent
1.5 Refractive Index
1.611-1.6731.918-1.936
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Orthorhombic
tetragonal
1.8 Birefringence
0.021-0.0330.016
Achroite
0 0.296
1.9 Clarity
TranslucentHerve Nicolas Lazzarelli
Translucent

Prehnite and Scheelite Optic Character

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

Prehnite and Scheelite Transparency

Similar to their colors, Prehnite 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, Prehnite is Translucent while Prehnite is Translucent in appearance.