Brucite and Goethite Optical Properties

Brucite

Goethite

Add ⊕

1 Optical Properties

1.1 Luster

Vitreous, Pearly

Adamantine

1.2 Pleochroism

Not Available

VisibleArthur Thomas

1.3 Dispersion

NANA

0.007 1

1.4 Transparency

TransparentMichael OâDonoghue, Gems, Sixth Edition (2006)

Gemstones (2009)

1.5 Refractive Index

1.56-1.602.26-2.398

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Trigonal

Orthorhombic

1.8 Birefringence

0.010-0.0200.138

0 0.296

1.9 Clarity

TransparentMichael OâDonoghue

Gemstones (2009)

Brucite and Goethite Optic Character

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

Brucite Vs Chrome Tourmaline

Brucite Vs Common Opal

Brucite and Goethite Transparency

Similar to their colors, Brucite and Goethite 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.