Witherite and Euclase Optical Properties

Witherite

Euclase

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1 Optical Properties

1.1 Luster

Vitreous

1.2 Pleochroism

NilArthur Thomas

Weak: colorless-(greenish) yellow

1.3 Dispersion

NA0.02

0.007 1

1.5 Transparency

Transparent, Translucent

Gemmological Tables (2004) More from other references

1.6 Refractive Index

1.529-1.6801.650-1.677

1 3.25

1.7 Optic Character

Not Available

1.8 Crystal System

Not Available

Monoclinic Prismatic H-M Symbol (2/m) Space Group: P 21/a

1.9 Birefringence

0.1480.019-0.025

0 0.296

1.10 Clarity

Transparent

TransparentUlrich Henn and Claudio C. Milisenda

Witherite and Euclase Optic Character

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

Similar to their colors, Witherite and Euclase 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, Witherite is Translucent and Transparent while Witherite is Translucent and Transparent in appearance.