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Pyrope
Pyrope

Brucite
Brucite



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Pyrope
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Brucite

Pyrope and Brucite Optical Properties

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Optical Properties

Luster

Greasy, Vitreous
Vitreous, Pearly

Pleochroism

None
-

Dispersion

0.020.03
0.005 1
👆🏻

Transparency

-
TransparentMichael O’Donoghue

Refractive Index

1.720-1.7561.56-1.60
1 3.25
👆🏻

Optic Character

-
-

Crystal System

cubic
Trigonal

Birefringence

-99990.010-0.020
0 0.296
👆🏻

Clarity

TransparentUlrich Henn and Claudio C. Milisenda
TransparentMichael O’Donoghue

Pyrope and Brucite Optic Character

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

Pyrope and Brucite Transparency

Similar to their colors, Pyrope 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, Pyrope is while Pyrope is in appearance.