Apache Tear and Riebeckite Optical Properties

Apache Tear

Riebeckite

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1 Optical Properties

1.1 Luster

Not Available

Vitreous, Silky

1.2 Pleochroism

Not Available

X = blue

1.3 Dispersion

NANA

0.007 1

1.4 Transparency

Not Available

1.5 Refractive Index

Not Available1.680-1.698

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Amorphous

monoclinic

1.8 Birefringence

Not Available0.005-0.008

0 0.296

1.9 Clarity

Not Available

Apache Tear and Riebeckite Optic Character

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

Similar to their colors, Apache Tear and Riebeckite 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, Apache Tear is Not Available while Apache Tear is Not Available in appearance.