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Pollucite
Pollucite

Astrophyllite
Astrophyllite



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Pollucite
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Astrophyllite

Pollucite and Astrophyllite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous, Greasy
Greasy, Pearly
1.2 Pleochroism
Not Available
Strong: X= deep red-orange Y= orange-yellow Z= lemon-yellow
1.3 Dispersion
0.01NA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent, Translucent
Translucent
1.5 Refractive Index
1.517-1.5251.678-1.758
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Isometric
Triclinic
1.8 Birefringence
Not Available0.050
Achroite
0 0.296
1.9 Clarity
Transparent
Translucent

Pollucite and Astrophyllite Optic Character

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

Pollucite and Astrophyllite Transparency

Similar to their colors, Pollucite 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, Pollucite is Translucent and Transparent while Pollucite is Translucent and Transparent in appearance.