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Steatite
Steatite

Brookite
Brookite



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Steatite
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Brookite

Steatite and Brookite Optical Properties

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Optical Properties

Luster

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Adamantine

Pleochroism

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Very weak

Dispersion

0.010.20
0.005 1
👆🏻

Transparency

-
-

Refractive Index

1.539-1.5962.583-2.741
1 3.25
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Optic Character

-
-

Crystal System

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Orthorhombic

Birefringence

0.046-0.0500.117
0 0.296
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Clarity

OpaqueUlrich Henn and Claudio C. Milisenda
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Steatite and Brookite Optic Character

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

Similar to their colors, Steatite and Brookite 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.