×

Dioptase
Dioptase

Actinolite
Actinolite



ADD
Compare
X
Dioptase
X
Actinolite

Dioptase and Actinolite Optical Properties

Optical Properties

Luster

Vitreous
Vitreous

Pleochroism

Weak; dark emerald green
moderate

Dispersion

0.040.02
0.005 1
👆🏻

Transparency

TranslucentHerve Nicolas Lazzarelli
TransparentUlrich Henn and Claudio C. Milisenda

Refractive Index

1.644-1.7201.613-1.628
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Trigonal
monoclinic

Birefringence

0.051-0.0530.0250-0.0270
0 0.296
👆🏻

Clarity

TranslucentHerve Nicolas Lazzarelli
TransparentUlrich Henn and Claudio C. Milisenda

Dioptase and Actinolite Optic Character

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

Dioptase and Actinolite Transparency

Similar to their colors, Dioptase and Actinolite 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, Dioptase is TranslucentHerve Nicolas Lazzarelli while Dioptase is TranslucentHerve Nicolas Lazzarelli in appearance.