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Strontianite
Strontianite

Erythrite
Erythrite



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Strontianite
X
Erythrite

Strontianite and Erythrite Optical Properties

Optical Properties

Luster

Vitreous, Greasy
Subadamantine, Pearly

Pleochroism

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

Dispersion

0.040.03
0.005 1
👆🏻

Transparency

Transparent
-

Refractive Index

1.517-1.6671.626-1.629
1 3.25
👆🏻

Optic Character

-
-

Crystal System

-
monoclinic

Birefringence

-9999-9999
0 0.296
👆🏻

Clarity

Transparent
-

Strontianite and Erythrite Optic Character

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

Strontianite and Erythrite Transparency

Similar to their colors, Strontianite 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, Strontianite is Transparent while Strontianite is Transparent in appearance.