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Anthophyllite
Anthophyllite

Lepidolite
Lepidolite



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X
Anthophyllite
X
Lepidolite

Anthophyllite and Lepidolite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous, Pearly
Vitreous, Pearly
1.2 Pleochroism
When Fe-rich
X = almost colorless; Y = Z = pink
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent
Transparent
1.5 Refractive Index
1.603-1.6901.525-1.587
Agate Opal
1 3.25
1.6 Optic Character
Biaxial/+
Not Available
1.7 Crystal System
Orthorhombic Dipyramidal H-M Symbol (2/m 2/m 2/m) Space Group: P nma
Triclinic
1.8 Birefringence
Not Available0.0290-0.0380
Achroite
0 0.296
1.9 Clarity
Transparent
Transparent

Anthophyllite and Lepidolite Optic Character

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

Anthophyllite and Lepidolite Transparency

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