Schorl and Jasper Optical Properties

Schorl

Jasper

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1 Optical Properties

1.1 Luster

Vitreous

1.2 Pleochroism

Very strong: yellow-brown pale yellow

AbsentWalter Schumann

1.3 Dispersion

NANone

0.007 1

1.4 Transparency

Transparent, Translucent

Opaque

1.5 Refractive Index

1.635-1.6721.540

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Not Available

Trigonal

1.8 Birefringence

0.025Not Available

0 0.296

1.9 Clarity

Transparent

OpaqueHerve Nicolas Lazzarelli

Schorl and Jasper Optic Character

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

Similar to their colors, Schorl and Jasper 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, Schorl is Translucent and Transparent while Schorl is Translucent and Transparent in appearance.