×

Apatite
Apatite

Eosphorite
Eosphorite



ADD
Compare
X
Apatite
X
Eosphorite

Apatite and Eosphorite Optical Properties

Optical Properties

Luster

Vitreous
Vitreous, Resinous

Pleochroism

Blue stones – strong
Visible: X = yellow; Y = pink; Z = pale pink to colorless

Dispersion

0.010.01
0.005 1
👆🏻

Transparency

-
Transparent

Refractive Index

1.628-1.6511.639-1.672
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Hexagonal
Orthorhombic

Birefringence

0.002-0.0080.029-0.032
0 0.296
👆🏻

Clarity

TransparentUlrich Henn and Claudio C. Milisenda
Transparent

Apatite and Eosphorite Optic Character

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

Apatite and Eosphorite Transparency

Similar to their colors, Apatite and Eosphorite 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, Apatite is while Apatite is in appearance.