Glaucophane and Williamsite Optical Properties

Glaucophane

Williamsite

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1 Optical Properties

1.1 Luster

Vitreous, Pearly

Waxy, Silky, Resinous, Greasy

1.2 Pleochroism

Strong

Not Available

1.3 Dispersion

NANA

0.007 1

1.4 Transparency

Not Available

TranslucentHerve Nicolas Lazzarelli, Blue Chart Gem Identification (2010)

1.5 Refractive Index

1.606-1.6371.530-1.575

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

monoclinic

Not Available

1.8 Birefringence

Not AvailableNot Available

0 0.296

1.9 Clarity

Not Available

TranslucentHerve Nicolas Lazzarelli

Glaucophane and Williamsite Optic Character

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

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Glaucophane and Williamsite Transparency

Similar to their colors, Glaucophane 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, Glaucophane is Not Available while Glaucophane is Not Available in appearance.