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Cassiterite
Cassiterite

Prasiolite
Prasiolite



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Prasiolite

Cassiterite and Prasiolite Optical Properties

1 Optical Properties
1.1 Luster
Adamantine, Greasy
Vitreous
1.2 Pleochroism
Pleochroic haloes have been observed. Dichroic in yellow
Very weak: light green pale greenWalter Schumann
1.3 Dispersion
Albite Optical ..
0.07
Rank: 6 (Overall)
0.01
Rank: 27 (Overall)
Fluorite Optical Properties
1.4 Transparency
Transparent, Translucent
Transparent, Translucent
1.5 Refractive Index
1.990-2.105
1.544-1.553
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
tetragonal
Trigonal
1.8 Birefringence
0.096-0.098
0.009
1.9 Clarity
Transparent
Transparent

Cassiterite and Prasiolite Optic Character

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

Cassiterite and Prasiolite Transparency

Similar to their colors, Cassiterite and Prasiolite 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, Cassiterite is Translucent and Transparent while Cassiterite is Translucent and Transparent in appearance.