Andesine and Erythrite Optical Properties

Andesine

Erythrite

Add ⊕

1 Optical Properties

1.1 Luster

Vitreous

Subadamantine, Pearly

1.2 Pleochroism

colorless.

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

1.3 Dispersion

0.70NA

0.007 1

1.4 Transparency

Transparent, Translucent, Transparent to translucent

Not Available

1.5 Refractive Index

1.543-1.5641.626-1.629

1 3.25

1.6 Optic Character

Biaxial/+

Not Available

1.7 Crystal System

Triclinic

monoclinic

1.8 Birefringence

0.007-0.011Not Available

0 0.296

1.9 Clarity

Transparent

Not Available

Andesine and Erythrite Optic Character

Andesine and Erythrite optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Andesine 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 Andesine 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. Andesine has Biaxial/+ character.

Compare Red Gemstones

Andesine Vs Blue John

Andesine Vs Black Opal

Andesine Vs Bloodstone Heliotrope

Andesine and Erythrite Transparency

Similar to their colors, Andesine 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, Andesine is Translucent, Transparent and Transparent to translucent while Andesine is Translucent, Transparent and Transparent to translucent in appearance.