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Purpurite
Purpurite

Cinnabar
Cinnabar



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Purpurite and Cinnabar Optical Properties

1 Optical Properties
1.1 Luster
Not Available
Adamantine
1.2 Pleochroism
StrongArthur Thomas
NilArthur Thomas
1.3 Dispersion
Albite Optical ..
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Fluorite Optical Properties
1.4 Transparency
TranslucentWalter Schumann, Gemstones of the world (2001) More from other references
Translucent
1.5 Refractive Index
1.85-1.92
2.905-3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Orthorhombic
Trigonal
1.8 Birefringence
0.070
Not Available
1.9 Clarity
TranslucentWalter Schumann
Translucent

Purpurite and Cinnabar Optic Character

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

Purpurite and Cinnabar Transparency

Similar to their colors, Purpurite and Cinnabar 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, Purpurite is Gemstones of the world (2001) More from other references and TranslucentWalter Schumann while Purpurite is Gemstones of the world (2001) More from other references and TranslucentWalter Schumann in appearance.