Hureaulite and Chrysoprase Optical Properties

Hureaulite

Chrysoprase

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1 Optical Properties

1.1 Luster

Vitreous, Greasy

Vitreous, Vitreous, Waxy

1.2 Pleochroism

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

AbsentWalter Schumann

1.3 Dispersion

NANone

0.007 1

1.4 Transparency

Transparent

Translucent, Translucent, Opaque, Translucent to nearly opaque

1.5 Refractive Index

1.647-1.6671.530-1.543

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

0.0120.004

0 0.296

1.9 Clarity

Transparent

Translucent

Hureaulite and Chrysoprase Optic Character

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

Similar to their colors, Hureaulite and Chrysoprase 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.