Friedelite and Chalcopyrite Optical Properties

Friedelite

Chalcopyrite

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1 Optical Properties

1.1 Luster

Not Available

1.2 Pleochroism

NilArthur Thomas

AbsentWalter Schumann

1.3 Dispersion

NANA

0.007 1

1.4 Transparency

Translucent

Handbook of mineralogy (2001)

1.5 Refractive Index

1.627-1.663Not Available

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Monoclinic Prismatic H-M Symbol (2/m) Space Group: C 2/m

tetragonal

1.8 Birefringence

0.032-0.035Not Available

0 0.296

1.9 Clarity

Translucent

Handbook of mineralogy (2001)

Friedelite and Chalcopyrite Optic Character

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

Similar to their colors, Friedelite and Chalcopyrite 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, Friedelite is Translucent while Friedelite is Translucent in appearance.