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Zircon
Zircon

Ludlamite
Ludlamite



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Zircon
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Ludlamite

Zircon and Ludlamite Optical Properties

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1 Optical Properties
1.1 Luster
Adamantine
Vitreous, Pearly
1.2 Pleochroism
Weak
NilArthur Thomas
1.3 Dispersion
0.04NA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent
Gemmological Tables (2004) More from other references
1.5 Refractive Index
1.810-2.0241.653-1.693
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
tetragonal
monoclinic
1.8 Birefringence
0.047-0.0550.038-0.044
Achroite
0 0.296
1.9 Clarity
Transparent
TransparentUlrich Henn and Claudio C. Milisenda

Zircon and Ludlamite Optic Character

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

Zircon and Ludlamite Transparency

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