Brucite and Scheelite Optical Properties

Brucite

Scheelite

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1 Optical Properties

1.1 Luster

Vitreous, Pearly

Vitreous, Adamantine

1.2 Pleochroism

Not Available

Definite dichoric in yellow (yellow to orange-brown)

1.3 Dispersion

NA0.04

0.007 1

1.4 Transparency

TransparentMichael OâDonoghue, Gems, Sixth Edition (2006)

Translucent, Transparent

1.5 Refractive Index

1.56-1.601.918-1.936

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Trigonal

tetragonal

1.8 Birefringence

0.010-0.0200.016

0 0.296

1.9 Clarity

TransparentMichael OâDonoghue

Translucent

Brucite and Scheelite Optic Character

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

Similar to their colors, Brucite and Scheelite 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 Gems, Sixth Edition (2006) and TransparentMichael OâDonoghue while Brucite is Gems, Sixth Edition (2006) and TransparentMichael OâDonoghue in appearance.