Coral and Hureaulite Optical Properties

Coral

Hureaulite

Add ⊕

1 Optical Properties

1.1 Luster

Not Available

Vitreous, Greasy

1.2 Pleochroism

AbsentWalter Schumann

Colorless yellow to pale rose reddish yellow to reddish brown.Anthony et al

1.3 Dispersion

NoneNA

0.007 1

1.4 Transparency

Translucent

Transparent

1.5 Refractive Index

1.486-1.6581.647-1.667

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Trigonal

Monoclinic Prismatic H-M Symbol (2/m) Space Group: C 2/c

1.8 Birefringence

0.160-0.1720.012

0 0.296

1.9 Clarity

Translucent

Transparent

Coral and Hureaulite Optic Character

Coral and Hureaulite optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Coral and Hureaulite 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 Hureaulite 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 Sapphire

Coral Vs Opal

Coral Vs Ruby

» More

More Compare Birthstones

Coral and Hureaulite Transparency

Similar to their colors, Coral and Hureaulite 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.