Carnelian and Euclase Optical Properties

Carnelian

Euclase

Add ⊕

1 Optical Properties

1.1 Luster

Vitreous

1.2 Pleochroism

AbsentWalter Schumann

Weak: colorless-(greenish) yellow

1.3 Dispersion

None0.02

0.007 1

1.4 Transparency

Translucent, Transparent to nearly opaque

Gemmological Tables (2004) More from other references

1.5 Refractive Index

1.535-1.5391.650-1.677

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Trigonal

Monoclinic Prismatic H-M Symbol (2/m) Space Group: P 21/a

1.8 Birefringence

0.003-0.0090.019-0.025

0 0.296

1.9 Clarity

Translucent

TransparentUlrich Henn and Claudio C. Milisenda

Carnelian and Euclase Optic Character

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

Carnelian Vs Quartz

Carnelian Vs Prasiolite

Carnelian Vs Kunzite

» More

More Compare Gems for Taurus

Carnelian and Euclase Transparency

Similar to their colors, Carnelian and Euclase 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, Carnelian is Translucent and Transparent to nearly opaque while Carnelian is Translucent and Transparent to nearly opaque in appearance.