Gahnospinel and Rhodochrosite Optical Properties

Gahnospinel

Rhodochrosite

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1 Optical Properties

1.1 Luster

Vitreous

1.2 Pleochroism

AbsentWalter Schumann

Weak

1.3 Dispersion

NA0.02

0.007 1

1.4 Transparency

Gemmological Tables (2004)

Transparent, Opaque, Transparent to nearly opaque

1.5 Refractive Index

1.735-1.7901.60

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Isometric

Trigonal

1.8 Birefringence

Not Available0.208-0.220

0 0.296

1.9 Clarity

TransparentUlrich Henn and Claudio C. Milisenda

Transparent to nearly opaque

Gahnospinel and Rhodochrosite Optic Character

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

Similar to their colors, Gahnospinel and Rhodochrosite 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.