Hurlbutite and Hiddenite Optical Properties

Hurlbutite

Hiddenite

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1 Optical Properties

1.1 Luster

Vitreous

1.2 Pleochroism

Not Available

Distinct trichroism: yellow green green blue greenHerve Nicolas Lazzarelli

1.3 Dispersion

NA0.02

0.007 1

1.4 Transparency

Transparent

1.5 Refractive Index

1.595-1.6041.657-1.681

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

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

monoclinic

1.8 Birefringence

0.0090.014-0.016

0 0.296

1.9 Clarity

Transparent

TransparentUlrich Henn and Claudio C. Milisenda

Hurlbutite and Hiddenite Optic Character

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

Similar to their colors, Hurlbutite and Hiddenite 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, Hurlbutite is Transparent while Hurlbutite is Transparent in appearance.