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Astrophyllite
Astrophyllite

Pezzotaite
Pezzotaite



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Astrophyllite
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Pezzotaite

Astrophyllite and Pezzotaite Optical Properties

1 Optical Properties
1.1 Luster
Greasy, Pearly
Not Available
1.2 Pleochroism
Strong: X= deep red-orange Y= orange-yellow Z= lemon-yellow
Not Available
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Translucent
Not Available
1.5 Refractive Index
1.678-1.7581.60-1.61
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
Color grading system

Astrophyllite and Pezzotaite Optic Character

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

Similar to their colors, Astrophyllite and Pezzotaite 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.