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Elbaite
Elbaite

Astrophyllite
Astrophyllite



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Elbaite
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Astrophyllite

Elbaite and Astrophyllite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous
Greasy, Pearly
1.2 Pleochroism
Pale green
Strong: X= deep red-orange Y= orange-yellow Z= lemon-yellow
1.3 Dispersion
0.02NA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent
Translucent
1.5 Refractive Index
1.614-1.6661.678-1.758
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Trigonal
Triclinic
1.8 Birefringence
0.014-0.0320.050
Achroite
0 0.296
1.9 Clarity
Transparent
Translucent

Elbaite and Astrophyllite Optic Character

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

Elbaite and Astrophyllite Transparency

Similar to their colors, Elbaite and Astrophyllite 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, Elbaite is Transparent while Elbaite is Transparent in appearance.