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Brucite
Brucite

Annabergite
Annabergite



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Brucite
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Annabergite

Brucite and Annabergite Optical Properties

Optical Properties

Luster

Vitreous, Pearly
Subadamantine, Pearly

Pleochroism

-
-

Dispersion

0.030.03
0.005 1
👆🏻

Transparency

TransparentMichael O’Donoghue
-

Refractive Index

1.56-1.601.622
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Trigonal
monoclinic

Birefringence

0.010-0.0200.065
0 0.296
👆🏻

Clarity

TransparentMichael O’Donoghue
-

Brucite and Annabergite Optic Character

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

Brucite and Annabergite Transparency

Similar to their colors, Brucite and Annabergite 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, Brucite is TransparentMichael O’Donoghue while Brucite is TransparentMichael O’Donoghue in appearance.