Home
Gemstones


Apatite and Eosphorite Optical Properties


Eosphorite and Apatite Optical Properties


Optical Properties

Luster
Vitreous   
Vitreous, Resinous   

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

Dispersion
0.01   
27
Not Available   

Transparency
Gemmological Tables (2004) More from other references   
Transparent   

Refractive Index
1.628-1.651   
1.639-1.672   

Optic Character
Not Available   
Not Available   

Crystal System
Hexagonal   
Orthorhombic   

Birefringence
0.002-0.008   
0.029-0.032   

Clarity
TransparentUlrich Henn and Claudio C. Milisenda   
Transparent   

Benefits >>
<< Physical Properties

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.

Compare Gems for Gemini

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 Gemmological Tables (2004) More from other references while Apatite is Gemmological Tables (2004) More from other references in appearance.

Gemini Gems

Gemini Gems

» More Gemini Gems

Compare Gems for Gemini

» More Compare Gems for Gemini