Brucite and Hessonite Garnet Optical Properties

Brucite

Hessonite Garnet

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1 Optical Properties

1.1 Luster

Vitreous, Pearly

Not Available

1.2 Pleochroism

Not Available

1.3 Dispersion

NANA

0.007 1

1.4 Transparency

TransparentMichael OâDonoghue, Gems, Sixth Edition (2006)

Not Available

1.5 Refractive Index

1.56-1.601.72-1.75

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Trigonal

Isometric

1.8 Birefringence

0.010-0.020Not Available

0 0.296

1.9 Clarity

TransparentMichael OâDonoghue

Color grading system

Brucite and Hessonite Garnet Optic Character

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

Similar to their colors, Brucite and Hessonite Garnet 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.