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Rutile
Rutile

Powellite
Powellite



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Rutile
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Rutile and Powellite Optical Properties

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1 Optical Properties
1.1 Luster
Adamantine
Greasy, Subadamantine
1.2 Pleochroism
Weak to distinct brownish red-green-yellow
In deeply colored specimens: blue greenAnthony et al
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent, Translucent
Transparent
1.5 Refractive Index
2.609-2.9031.974-1.984
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
tetragonal
Not Available
1.8 Birefringence
0.296Not Available
Achroite
0 0.296
1.9 Clarity
Transparent
Transparent

Rutile and Powellite Optic Character

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

Rutile and Powellite Transparency

Similar to their colors, Rutile and Powellite 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, Rutile is Translucent and Transparent while Rutile is Translucent and Transparent in appearance.