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Astrophyllite
Astrophyllite

Tigers Eye
Tigers Eye



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Astrophyllite
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Tigers Eye

Astrophyllite and Tigers Eye Optical Properties

1 Optical Properties
1.1 Luster
Greasy, Pearly
Silky
1.2 Pleochroism
Strong: X= deep red-orange Y= orange-yellow Z= lemon-yellow
Not Available
1.3 Dispersion
NANone
Fluorite Optical Properties
0.007 1
1.4 Transparency
Translucent
Opaque
1.5 Refractive Index
1.678-1.7581.534-1.540
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Triclinic
Trigonal
1.8 Birefringence
0.050Not Available
Achroite
0 0.296
1.9 Clarity
Translucent
Gemstones of the world (2001) More from other references

Astrophyllite and Tigers Eye Optic Character

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

Astrophyllite and Tigers Eye Transparency

Similar to their colors, Astrophyllite and Tigers Eye 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, Astrophyllite is Translucent while Astrophyllite is Translucent in appearance.