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Steatite
Steatite

Malachite
Malachite



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Steatite
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Malachite

Steatite and Malachite Optical Properties

Optical Properties

Luster

-
Adamantine, Vitreous, Silky

Pleochroism

-
-

Dispersion

0.010.04
0.005 1
👆🏻

Transparency

-
Opaque

Refractive Index

1.539-1.5961.655-1.909
1 3.25
👆🏻

Optic Character

-
-

Crystal System

-
monoclinic

Birefringence

0.046-0.0500.254
0 0.296
👆🏻

Clarity

OpaqueUlrich Henn and Claudio C. Milisenda
-

Steatite and Malachite Optic Character

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

Steatite and Malachite Transparency

Similar to their colors, Steatite and Malachite 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, Steatite is while Steatite is in appearance.