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Astrophyllite
Astrophyllite

Anorthoclase
Anorthoclase



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Astrophyllite
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Anorthoclase

Astrophyllite and Anorthoclase Optical Properties

1 Optical Properties
1.1 Luster
Greasy, Pearly
Vitreous, Pearly
1.2 Pleochroism
Strong: X= deep red-orange Y= orange-yellow Z= lemon-yellow
WeakMichael O’Donoghue
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Translucent
Translucent
1.5 Refractive Index
1.678-1.7581.518-1.534
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Triclinic
Triclinic Pinacoidal H-M Symbol ( 1) Space Group: C1
1.8 Birefringence
0.0500.006-0.008
Achroite
0 0.296
1.9 Clarity
Translucent
Translucent

Astrophyllite and Anorthoclase Optic Character

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

Similar to their colors, Astrophyllite and Anorthoclase 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.