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Variscite
Variscite

Phosgenite
Phosgenite



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Variscite and Phosgenite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous, Waxy
Adamantine
1.2 Pleochroism
MissingWalter Schumann
Weakly pleochroic with O reddish and E greenish in thick sections.
1.3 Dispersion
Albite Optical ..
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Fluorite Optical Properties
1.4 Transparency
Translucent, Opaque . May be translucent when backlit on the edges.
Gemmological Tables (2004) More from other references
1.5 Refractive Index
1.560-1.594
2.117-2.145
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Orthorhombic
tetragonal
1.8 Birefringence
0.031
0.027
1.9 Clarity
Translucent
TransparentUlrich Henn and Claudio C. Milisenda

Variscite and Phosgenite Optic Character

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

Variscite and Phosgenite Transparency

Similar to their colors, Variscite and Phosgenite 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, Variscite is Opaque . May be translucent when backlit on the edges. and Translucent while Variscite is Opaque . May be translucent when backlit on the edges. and Translucent in appearance.