Obsidian and Hureaulite Optical Properties

Obsidian

Hureaulite

Add ⊕

1 Optical Properties

1.1 Luster

Vitreous

Vitreous, Greasy

1.2 Pleochroism

AbsentWalter Schumann

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

1.3 Dispersion

0.01NA

0.007 1

1.4 Transparency

Transparent, Translucent

Transparent

1.5 Refractive Index

1.450-1.5501.647-1.667

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Amorphous

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

1.8 Birefringence

Not Available0.012

0 0.296

1.9 Clarity

Transparent

Obsidian and Hureaulite Optic Character

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

Compare Gems for Sagittarius

Obsidian Vs Spinel

Obsidian Vs Tanzanite

Obsidian Vs Topaz

Obsidian and Hureaulite Transparency

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