Rutile and Erythrite Optical Properties

Rutile

Erythrite

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1 Optical Properties

1.1 Luster

Adamantine

Subadamantine, Pearly

1.2 Pleochroism

Weak to distinct brownish red-green-yellow

Visible: X = pale pinkish to pale rose; Y = pale violet to pale violet-rose; Z = deep red

1.3 Dispersion

NANA

0.007 1

1.4 Transparency

Transparent, Translucent

Not Available

1.5 Refractive Index

2.609-2.9031.626-1.629

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

tetragonal

monoclinic

1.8 Birefringence

0.296Not Available

0 0.296

1.9 Clarity

Transparent

Not Available

Rutile and Erythrite Optic Character

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

Similar to their colors, Rutile and Erythrite 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, Rutile is Translucent and Transparent while Rutile is Translucent and Transparent in appearance.