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Anglesite
Anglesite

Cassiterite
Cassiterite



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Anglesite
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Cassiterite

Anglesite and Cassiterite Optical Properties

Optical Properties

Luster

Adamantine
Adamantine, Greasy

Pleochroism

-
Pleochroic haloes have been observed. Dichroic in yellow

Dispersion

0.040.07
0.005 1
👆🏻

Transparency

Transparent
Transparent, Translucent

Refractive Index

1.877-1.8941.990-2.105
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Orthorhombic
tetragonal

Birefringence

0.0170.096-0.098
0 0.296
👆🏻

Clarity

Transparent
Transparent

Anglesite and Cassiterite Optic Character

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

Anglesite and Cassiterite Transparency

Similar to their colors, Anglesite 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, Anglesite is Transparent while Anglesite is Transparent in appearance.