Labradorite and Rock Crystal Optical Properties

Labradorite

Rock Crystal

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1 Optical Properties

1.1 Luster

Vitreous, Pearly

Not Available

1.2 Pleochroism

From the Congo

AbsentWalter Schumann

1.3 Dispersion

0.010.01

0.007 1

1.4 Transparency

Transparent, Translucent, Transparent to translucent

TransparentWalter Schumann, Gemstones of the world (2001) More from other references

1.5 Refractive Index

1.554-1.5731.544-1.553

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Triclinic

Not Available

1.8 Birefringence

0.008-0.0100.009

0 0.296

1.9 Clarity

Transparent

TransparentWalter Schumann

Labradorite and Rock Crystal Optic Character

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

Similar to their colors, Labradorite and Rock Crystal 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, Labradorite is Translucent, Transparent and Transparent to translucent while Labradorite is Translucent, Transparent and Transparent to translucent in appearance.