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Lepidolite
Lepidolite

Brookite
Brookite



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Lepidolite
X
Brookite

Lepidolite and Brookite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous, Pearly
Adamantine
1.2 Pleochroism
X = almost colorless; Y = Z = pink
Very weak
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent
Gemmological Tables (2004) More from other references
1.5 Refractive Index
1.525-1.5872.583-2.741
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Triclinic
Orthorhombic
1.8 Birefringence
0.0290-0.03800.117
Achroite
0 0.296
1.9 Clarity
Transparent
Gemmological Tables (2004) More from other references

Lepidolite and Brookite Optic Character

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

Lepidolite and Brookite Transparency

Similar to their colors, Lepidolite and Brookite 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, Lepidolite is Transparent while Lepidolite is Transparent in appearance.