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Scheelite and Brucite Optical Properties


Brucite and Scheelite Optical Properties


Optical Properties

Luster
Vitreous, Adamantine  
Vitreous, Pearly  

Pleochroism
Definite dichoric in yellow (yellow to orange-brown)  
-  

Dispersion
0.04  
36
0.03  
99+

Transparency
Translucent, Transparent  
TransparentMichael O’Donoghue  

Refractive Index
1.918-1.936  
1.56-1.60  

Optic Character
-  
-  

Crystal System
tetragonal  
Trigonal  

Birefringence
0.016  
0.010-0.020  

Clarity
Translucent  
TransparentMichael O’Donoghue  

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Scheelite and Brucite Optic Character

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

Similar to their colors, Scheelite and Brucite 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.

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Yellow Gemstones


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