Hurlbutite and Vesuvianite Idocrase Optical Properties

Hurlbutite

Vesuvianite Idocrase

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1 Optical Properties

1.1 Luster

Vitreous

Not Available

1.2 Pleochroism

Not Available

1.3 Dispersion

NA0.02

0.007 1

1.4 Transparency

Transparent

1.5 Refractive Index

1.595-1.6041.700-1.725

1 3.25

1.6 Optic Character

Not Available

Uniaxial/-

1.7 Crystal System

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

Not Available

1.8 Birefringence

0.0090.002-0.012

0 0.296

1.9 Clarity

Transparent

Hurlbutite and Vesuvianite Idocrase Optic Character

Hurlbutite and Vesuvianite Idocrase optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Hurlbutite and Vesuvianite Idocrase 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 Vesuvianite Idocrase 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. Vesuvianite Idocrase has Uniaxial/- character.

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Hurlbutite and Vesuvianite Idocrase Transparency

Similar to their colors, Hurlbutite and Vesuvianite Idocrase 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.