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Creedite
Creedite

Purpurite
Purpurite



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Creedite
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Purpurite

Creedite and Purpurite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous
Not Available
1.2 Pleochroism
Not Available
StrongArthur Thomas
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent, Translucent
TranslucentWalter Schumann, Gemstones of the world (2001) More from other references
1.5 Refractive Index
1.461-1.4851.85-1.92
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
monoclinic
Orthorhombic
1.8 Birefringence
0.0240.070
Achroite
0 0.296
1.9 Clarity
Transparent
TranslucentWalter Schumann

Creedite and Purpurite Optic Character

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

Creedite and Purpurite Transparency

Similar to their colors, Creedite and Purpurite 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, Creedite is Translucent and Transparent while Creedite is Translucent and Transparent in appearance.