Labradorite and Brucite Optical Properties

Labradorite

Brucite

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1 Optical Properties

1.1 Luster

Vitreous, Pearly

1.2 Pleochroism

From the Congo

Not Available

1.3 Dispersion

0.01NA

0.007 1

1.4 Transparency

Transparent, Translucent, Transparent to translucent

TransparentMichael OâDonoghue, Gems, Sixth Edition (2006)

1.5 Refractive Index

1.554-1.5731.56-1.60

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Triclinic

Trigonal

1.8 Birefringence

0.008-0.0100.010-0.020

0 0.296

1.9 Clarity

Transparent

TransparentMichael OâDonoghue

Labradorite and Brucite Optic Character

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

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Labradorite and Brucite Transparency

Similar to their colors, Labradorite 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, Labradorite is Translucent, Transparent and Transparent to translucent while Labradorite is Translucent, Transparent and Transparent to translucent in appearance.