Hureaulite and Dioptase Optical Properties

Hureaulite

Dioptase

Add ⊕

1 Optical Properties

1.1 Luster

Vitreous, Greasy

Vitreous

1.2 Pleochroism

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

Weak; dark emerald green

1.3 Dispersion

NA0.04

0.007 1

1.4 Transparency

Transparent

TranslucentHerve Nicolas Lazzarelli

1.5 Refractive Index

1.647-1.6671.644-1.720

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

Trigonal

1.8 Birefringence

0.0120.051-0.053

0 0.296

1.9 Clarity

Transparent

TranslucentHerve Nicolas Lazzarelli

Hureaulite and Dioptase Optic Character

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

Hureaulite Vs Meionite

Hureaulite Vs Lepidolite

Hureaulite Vs Marialite

Hureaulite and Dioptase Transparency

Similar to their colors, Hureaulite and Dioptase 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.