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Humite
Humite

Ludlamite
Ludlamite



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Humite
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Ludlamite

Humite and Ludlamite Optical Properties

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1 Optical Properties
1.1 Luster
Vitreous
Vitreous, Pearly
1.2 Pleochroism
pale golden yellow or deep golden yellow.
NilArthur Thomas
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent
Gemmological Tables (2004) More from other references
1.5 Refractive Index
1.607-1.6751.653-1.693
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Orthorhombic
monoclinic
1.8 Birefringence
Not Available0.038-0.044
Achroite
0 0.296
1.9 Clarity
Transparent
TransparentUlrich Henn and Claudio C. Milisenda

Humite and Ludlamite Optic Character

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

Humite and Ludlamite Transparency

Similar to their colors, Humite 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, Humite is Transparent while Humite is Transparent in appearance.