Chrysoprase and Topaz Optical Properties

Chrysoprase

Topaz

Add ⊕

1 Optical Properties

1.1 Luster

Vitreous, Vitreous, Waxy

Vitreous

1.2 Pleochroism

AbsentWalter Schumann

Weak

1.3 Dispersion

None0.01

0.007 1

1.4 Transparency

Translucent, Translucent, Opaque, Translucent to nearly opaque

Transparent

1.5 Refractive Index

1.530-1.5431.606-1.644

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Trigonal

Orthorhombic

1.8 Birefringence

0.0040.008-0.011

0 0.296

1.9 Clarity

Translucent

TransparentUlrich Henn and Claudio C. Milisenda

Chrysoprase and Topaz Optic Character

Chrysoprase and Topaz optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Chrysoprase and Topaz 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 Chrysoprase and Topaz 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 Taurus » More

Chrysoprase Vs Quartz

Chrysoprase Vs Rose Quartz

Chrysoprase Vs Rhodolite

» More

More Compare Gems for Taurus

Chrysoprase and Topaz Transparency

Similar to their colors, Chrysoprase and Topaz 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, Chrysoprase is Opaque, Translucent, Translucent and Translucent to nearly opaque while Chrysoprase is Opaque, Translucent, Translucent and Translucent to nearly opaque in appearance.