Hureaulite and Hyalite Optical Properties

Hureaulite

Hyalite

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1 Optical Properties

1.1 Luster

Vitreous, Greasy

Not Available

1.2 Pleochroism

Colorless yellow to pale rose reddish yellow to reddish brown.Anthony et al

Not Available

1.3 Dispersion

NANA

0.007 1

1.4 Transparency

Transparent

1.5 Refractive Index

1.647-1.6671.37-1.52

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Monoclinic Prismatic H-M Symbol (2/m) Space Group: C 2/c

Not Available

1.8 Birefringence

0.012Not Available

0 0.296

1.9 Clarity

Transparent

Hureaulite and Hyalite Optic Character

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

Similar to their colors, Hureaulite and Hyalite 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, Hureaulite is Transparent while Hureaulite is Transparent in appearance.