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Carnelian
Carnelian

Cassiterite
Cassiterite



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Carnelian
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Cassiterite

Carnelian and Cassiterite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous
Adamantine, Greasy
1.2 Pleochroism
AbsentWalter Schumann
Pleochroic haloes have been observed. Dichroic in yellow
1.3 Dispersion
Albite Optical ..
None
Rank: N/A (Overall)
0.07
Rank: 6 (Overall)
Fluorite Optical Properties
1.4 Transparency
Translucent, Transparent to nearly opaque
Transparent, Translucent
1.5 Refractive Index
1.535-1.539
1.990-2.105
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Trigonal
tetragonal
1.8 Birefringence
0.003-0.009
0.096-0.098
1.9 Clarity
Translucent
Transparent

Carnelian and Cassiterite Optic Character

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

Carnelian and Cassiterite Transparency

Similar to their colors, Carnelian and Cassiterite 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, Carnelian is Translucent and Transparent to nearly opaque while Carnelian is Translucent and Transparent to nearly opaque in appearance.