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Cerussite
Cerussite

Thulite
Thulite



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Cerussite
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Thulite

Cerussite and Thulite Optical Properties

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1 Optical Properties
1.1 Luster
Adamantine, Vitreous, Resinous
Vitreous
1.2 Pleochroism
AbsentWalter Schumann
Present
1.3 Dispersion
0.06NA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent, Translucent
Opaque, Translucent, Opaque . May be translucent in thin backlit sections.
1.5 Refractive Index
1.803-2.0781.695
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Orthorhombic
Orthorhombic
1.8 Birefringence
0.2730.006-0.018
Achroite
0 0.296
1.9 Clarity
Transparent
OpaqueHerve Nicolas Lazzarelli

Cerussite and Thulite Optic Character

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

Cerussite and Thulite Transparency

Similar to their colors, Cerussite and Thulite 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, Cerussite is Translucent and Transparent while Cerussite is Translucent and Transparent in appearance.