Brucite and Clinochlore Optical Properties

Brucite

Clinochlore

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1 Optical Properties

1.1 Luster

Vitreous, Pearly

Pearly, Greasy

1.2 Pleochroism

Not Available

Distinct: light yellow-green to light bluE

1.3 Dispersion

NANA

0.007 1

1.4 Transparency

TransparentMichael OâDonoghue, Gems, Sixth Edition (2006)

Transparent

1.5 Refractive Index

1.56-1.601.571-1.597

1 3.25

1.6 Optic Character

Not Available

Biaxial/+

1.7 Crystal System

Trigonal

Monoclinic Prismatic H-M Symbol (2/m) Space Group: C 2/m

1.8 Birefringence

0.010-0.020Not Available

0 0.296

1.9 Clarity

TransparentMichael OâDonoghue

Transparent

Brucite and Clinochlore Optic Character

Brucite and Clinochlore optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Brucite and Clinochlore 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 Clinochlore 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. Clinochlore has Biaxial/+ character.

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Brucite and Clinochlore Transparency

Similar to their colors, Brucite and Clinochlore 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.