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Cassiterite
Cassiterite

Inderite
Inderite



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Cassiterite
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Inderite

Cassiterite and Inderite Optical Properties

1 Optical Properties
1.1 Luster
Adamantine, Greasy
Vitreous, Pearly, Greasy
1.2 Pleochroism
Pleochroic haloes have been observed. Dichroic in yellow
Not Available
1.3 Dispersion
0.07NA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent, Translucent
Gemmological Tables (2004)
1.5 Refractive Index
1.990-2.1051.488-1.505
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Biaxial/+
1.7 Crystal System
tetragonal
Monoclinic Prismatic H-M Symbol (2/m) Space Group: P 21/a
1.8 Birefringence
0.096-0.0980.017
Achroite
0 0.296
1.9 Clarity
Transparent
TransparentUlrich Henn and Claudio C. Milisenda

Cassiterite and Inderite Optic Character

Cassiterite and Inderite optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Cassiterite and Inderite 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 Inderite 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. Inderite has Biaxial/+ character.

Cassiterite and Inderite Transparency

Similar to their colors, Cassiterite and Inderite 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.