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Brookite
Brookite

Labradorite
Labradorite



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Labradorite

Brookite and Labradorite Optical Properties

1 Optical Properties
1.1 Luster
Adamantine
Vitreous, Pearly
1.2 Pleochroism
Very weak
From the Congo
1.3 Dispersion
NA0.01
Fluorite Optical Properties
0.007 1
1.4 Transparency
Gemmological Tables (2004) More from other references
Transparent, Translucent, Transparent to translucent
1.5 Refractive Index
2.583-2.7411.554-1.573
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Orthorhombic
Triclinic
1.8 Birefringence
0.1170.008-0.010
Achroite
0 0.296
1.9 Clarity
Gemmological Tables (2004) More from other references
Transparent

Brookite and Labradorite Optic Character

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

Brookite and Labradorite Transparency

Similar to their colors, Brookite and Labradorite 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, Brookite is Gemmological Tables (2004) More from other references while Brookite is Gemmological Tables (2004) More from other references in appearance.