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Ludlamite
Ludlamite

Super Seven Crystals
Super Seven Crystals



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Ludlamite
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Super Seven Crystals

Ludlamite and Super Seven Crystals Optical Properties

Optical Properties

Luster

Vitreous, Pearly
Vitreous, Pearly, Silky

Pleochroism

-
-

Dispersion

0.020.03
0.005 1
👆🏻

Transparency

-
Transparent, Translucent, Opaque

Refractive Index

1.653-1.6931.519-1.521
1 3.25
👆🏻

Optic Character

-
-

Crystal System

monoclinic
monoclinic

Birefringence

0.038-0.0440.0090-0.0100
0 0.296
👆🏻

Clarity

TransparentUlrich Henn and Claudio C. Milisenda
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Ludlamite and Super Seven Crystals Optic Character

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

Ludlamite and Super Seven Crystals Transparency

Similar to their colors, Ludlamite and Super Seven Crystals 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, Ludlamite is while Ludlamite is in appearance.