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Staurolite
Staurolite

Idocrase
Idocrase



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X
Staurolite
X
Idocrase

Staurolite and Idocrase Optical Properties

Optical Properties

Luster

Resinous
-

Pleochroism

X = colorless; Y = pale yellow; Z = golden yellow
-

Dispersion

0.020.02
0.005 1
👆🏻

Transparency

-
-

Refractive Index

1.736-1.7621.67-1.76
1 3.25
👆🏻

Optic Character

-
-

Crystal System

monoclinic
tetragonal

Birefringence

0.009-0.015-9999
0 0.296
👆🏻

Clarity

-
-

Staurolite and Idocrase Optic Character

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

Staurolite and Idocrase Transparency

Similar to their colors, Staurolite and Idocrase 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, Staurolite is while Staurolite is in appearance.