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Anorthoclase
Anorthoclase

Cordierite
Cordierite



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Anorthoclase
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Cordierite

Anorthoclase and Cordierite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous, Pearly
Greasy, Vitreous
1.2 Pleochroism
WeakMichael O’Donoghue
X = pale yellow
1.3 Dispersion
Albite Optical ..
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Fluorite Optical Properties
1.4 Transparency
Translucent
Not Available
1.5 Refractive Index
1.518-1.534
Not Available
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Triclinic Pinacoidal H-M Symbol ( 1) Space Group: C1
Orthorhombic
1.8 Birefringence
0.006-0.008
Not Available
1.9 Clarity
Translucent
Not Available

Anorthoclase and Cordierite Optic Character

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

Anorthoclase and Cordierite Transparency

Similar to their colors, Anorthoclase and Cordierite 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, Anorthoclase is Translucent while Anorthoclase is Translucent in appearance.