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Creedite
Creedite

Williamsite
Williamsite



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Creedite
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Williamsite

Creedite and Williamsite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous
Waxy, Silky, Resinous, Greasy
1.2 Pleochroism
Not Available
Not Available
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent, Translucent
TranslucentHerve Nicolas Lazzarelli, Blue Chart Gem Identification (2010)
1.5 Refractive Index
1.461-1.4851.530-1.575
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
monoclinic
Not Available
1.8 Birefringence
0.024Not Available
Achroite
0 0.296
1.9 Clarity
Transparent
TranslucentHerve Nicolas Lazzarelli

Creedite and Williamsite Optic Character

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

Similar to their colors, Creedite and Williamsite 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.