Chalcopyrite and Cordierite Optical Properties

Chalcopyrite

Cordierite

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1 Optical Properties

1.1 Luster

Not Available

Greasy, Vitreous

1.2 Pleochroism

AbsentWalter Schumann

X = pale yellow

1.3 Dispersion

NANA

0.007 1

1.4 Transparency

Handbook of mineralogy (2001)

Not Available

1.5 Refractive Index

Not AvailableNot Available

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

tetragonal

Orthorhombic

1.8 Birefringence

Not AvailableNot Available

0 0.296

1.9 Clarity

Handbook of mineralogy (2001)

Not Available

Chalcopyrite and Cordierite Optic Character

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

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Chalcopyrite and Cordierite Transparency

Similar to their colors, Chalcopyrite 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, Chalcopyrite is Handbook of mineralogy (2001) while Chalcopyrite is Handbook of mineralogy (2001) in appearance.