Gahnospinel and Crocoite Optical Properties

Gahnospinel

Crocoite

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1 Optical Properties

1.1 Luster

Vitreous

Adamantine

1.2 Pleochroism

AbsentWalter Schumann

Distinctly trichroic

1.3 Dispersion

NANA

0.007 1

1.4 Transparency

Gemmological Tables (2004)

Transparent

1.5 Refractive Index

1.735-1.7902.31-2.66

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Isometric

Monoclinic Prismatic H-M Symbol (2/m) Space Group: P 21/n

1.8 Birefringence

Not AvailableNot Available

0 0.296

1.9 Clarity

TransparentUlrich Henn and Claudio C. Milisenda

Transparent

Gahnospinel and Crocoite Optic Character

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

Similar to their colors, Gahnospinel and Crocoite 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.