Gahnospinel and Chalcopyrite Optical Properties

Gahnospinel

Chalcopyrite

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1 Optical Properties

1.1 Luster

Vitreous

Not Available

1.2 Pleochroism

AbsentWalter Schumann

1.3 Dispersion

NANA

0.007 1

1.4 Transparency

Gemmological Tables (2004)

Handbook of mineralogy (2001)

1.5 Refractive Index

1.735-1.790Not Available

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Isometric

tetragonal

1.8 Birefringence

Not AvailableNot Available

0 0.296

1.9 Clarity

TransparentUlrich Henn and Claudio C. Milisenda

Handbook of mineralogy (2001)

Gahnospinel and Chalcopyrite Optic Character

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

Similar to their colors, Gahnospinel 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, Gahnospinel is Gemmological Tables (2004) while Gahnospinel is Gemmological Tables (2004) in appearance.