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Rubellite Tourmaline
Rubellite Tourmaline

Ludlamite
Ludlamite



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Rubellite Tourmaline
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Ludlamite

Rubellite Tourmaline and Ludlamite Optical Properties

1 Optical Properties
1.1 Luster
Not Available
Vitreous, Pearly
1.2 Pleochroism
Not Available
NilArthur Thomas
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Opaque
Gemmological Tables (2004) More from other references
1.5 Refractive Index
Not Available1.653-1.693
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Isometric
monoclinic
1.8 Birefringence
Not Available0.038-0.044
Achroite
0 0.296
1.9 Clarity
Opaque
TransparentUlrich Henn and Claudio C. Milisenda

Rubellite Tourmaline and Ludlamite Optic Character

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

Rubellite Tourmaline and Ludlamite Transparency

Similar to their colors, Rubellite Tourmaline and Ludlamite 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, Rubellite Tourmaline is Opaque while Rubellite Tourmaline is Opaque in appearance.