Brucite and Hibonite Optical Properties

Brucite

Hibonite

Add ⊕

1 Optical Properties

1.1 Luster

Vitreous, Pearly

Vitreous

1.2 Pleochroism

Not Available

O = brownish gray; E = gray

1.3 Dispersion

NANA

0.007 1

1.4 Transparency

TransparentMichael OâDonoghue, Gems, Sixth Edition (2006)

Handbook of mineralogy (2001)

1.5 Refractive Index

1.56-1.601.79-1.807

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Trigonal

Hexagonal

1.8 Birefringence

0.010-0.020Not Available

0 0.296

1.9 Clarity

TransparentMichael OâDonoghue

Handbook of mineralogy (2001)

Brucite and Hibonite Optic Character

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

Compare Blue Gemstones

Brucite Vs Chrome Tourmaline

Brucite Vs Common Opal

Brucite Vs Chrysocolla

Brucite and Hibonite Transparency

Similar to their colors, Brucite and Hibonite 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.