×

Natrolite
Natrolite

Apatite
Apatite



ADD
Compare
X
Natrolite
X
Apatite

Natrolite and Apatite Optical Properties

Add ⊕

Optical Properties

Luster

Vitreous, Silky, Pearly
Vitreous

Pleochroism

-
Blue stones – strong

Dispersion

0.020.01
0.005 1
👆🏻

Transparency

Transparent, Translucent
-

Refractive Index

1.478-1.4931.628-1.651
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Orthorhombic
Hexagonal

Birefringence

0.012-0.0130.002-0.008
0 0.296
👆🏻

Clarity

Transparent
TransparentUlrich Henn and Claudio C. Milisenda

Natrolite and Apatite Optic Character

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

Natrolite and Apatite Transparency

Similar to their colors, Natrolite and Apatite 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, Natrolite is Transparent and Translucent while Natrolite is Transparent and Translucent in appearance.