Coral and Apache Tear Optical Properties

Coral

Apache Tear

Add ⊕

1 Optical Properties

1.1 Luster

Not Available

1.2 Pleochroism

AbsentWalter Schumann

Not Available

1.3 Dispersion

NoneNA

0.007 1

1.4 Transparency

Translucent

Not Available

1.5 Refractive Index

1.486-1.658Not Available

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Trigonal

Amorphous

1.8 Birefringence

0.160-0.172Not Available

0 0.296

1.9 Clarity

Translucent

Not Available

Coral and Apache Tear Optic Character

Coral and Apache Tear optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Coral and Apache Tear 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 Coral and Apache Tear 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 Birthstones » More

Coral Vs Ruby

Coral Vs Opal

Coral Vs Sapphire

» More

More Compare Birthstones

Coral and Apache Tear Transparency

Similar to their colors, Coral and Apache Tear 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, Coral is Translucent while Coral is Translucent in appearance.