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Falcons Eye
Falcons Eye

Bastnasite
Bastnasite



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Falcons Eye
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Bastnasite

Falcons Eye and Bastnasite Optical Properties

1 Optical Properties
1.1 Luster
Not Available
Vitreous, Greasy, Pearly
1.2 Pleochroism
Not Available
Faint
1.3 Dispersion
NoneNA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Gemstones of the world (2001)
Gemmological Tables (2004) More from other references
1.5 Refractive Index
1.534-1.5401.717-1.722
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Not Available
Hexagonal
1.8 Birefringence
Not Available0.100
Achroite
0 0.296
1.9 Clarity
Gemstones of the world (2001)
TransparentUlrich Henn and Claudio C. Milisenda

Falcons Eye and Bastnasite Optic Character

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

Falcons Eye and Bastnasite Transparency

Similar to their colors, Falcons Eye and Bastnasite 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, Falcons Eye is Gemstones of the world (2001) while Falcons Eye is Gemstones of the world (2001) in appearance.