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Brucite
Brucite

Agrellite
Agrellite



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Brucite
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Agrellite

Brucite and Agrellite Optical Properties

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1 Optical Properties
1.1 Luster
Vitreous, Pearly
Pearly
1.2 Pleochroism
Not Available
colorless.
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
TransparentMichael O’Donoghue, Gems, Sixth Edition (2006)
Not Available
1.5 Refractive Index
1.56-1.601.567
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Trigonal
Triclinic
1.8 Birefringence
0.010-0.0200.014
Achroite
0 0.296
1.9 Clarity
TransparentMichael O’Donoghue
Not Available

Brucite and Agrellite Optic Character

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

Brucite and Agrellite Transparency

Similar to their colors, Brucite and Agrellite 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 O’Donoghue while Brucite is Gems, Sixth Edition (2006) and TransparentMichael O’Donoghue in appearance.