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Leucite
Leucite

Friedelite
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Leucite and Friedelite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous
Not Available
1.2 Pleochroism
Not Available
NilArthur Thomas
1.3 Dispersion
Albite Optical ..
0.01
Rank: 29 (Overall)
Not Available
Rank: N/A (Overall)
Fluorite Optical Properties
1.4 Transparency
Gemmological Tables (2004) More from other references
Translucent
1.5 Refractive Index
1.504-1.510
1.627-1.663
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
tetragonal
Monoclinic Prismatic H-M Symbol (2/m) Space Group: C 2/m
1.8 Birefringence
0.001
0.032-0.035
1.9 Clarity
TransparentUlrich Henn and Claudio C. Milisenda
Translucent

Leucite and Friedelite Optic Character

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

Leucite and Friedelite Transparency

Similar to their colors, Leucite and Friedelite 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, Leucite is Gemmological Tables (2004) More from other references while Leucite is Gemmological Tables (2004) More from other references in appearance.