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Atacamite
Atacamite

Brucite
Brucite



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Atacamite
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Brucite

Atacamite and Brucite Optical Properties

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Optical Properties

Luster

Adamantine, Vitreous
Vitreous, Pearly

Pleochroism

X = pale green; Y = yellow-green; Z = grass-green
-

Dispersion

0.030.03
0.005 1
👆🏻

Transparency

-
TransparentMichael O’Donoghue

Refractive Index

1.8311.56-1.60
1 3.25
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Optic Character

-
-

Crystal System

Orthorhombic
Trigonal

Birefringence

0.0490.010-0.020
0 0.296
👆🏻

Clarity

-
TransparentMichael O’Donoghue

Atacamite and Brucite Optic Character

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

Atacamite and Brucite Transparency

Similar to their colors, Atacamite and Brucite 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, Atacamite is while Atacamite is in appearance.