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Gahnospinel
Gahnospinel

Rosasite
Rosasite



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Gahnospinel
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Rosasite

Gahnospinel and Rosasite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous
Silky, Vitreous
1.2 Pleochroism
AbsentWalter Schumann
Strong: X = pale emerald green or colourless; Y = dark emerald green or pale blue; Z = dark emerald green or pale blue
1.3 Dispersion
Albite Optical ..
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Fluorite Optical Properties
1.4 Transparency
Gemmological Tables (2004)
Not Available
1.5 Refractive Index
1.735-1.790
1.672-1.688
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Isometric
monoclinic
1.8 Birefringence
Not Available
0.139-0.143
1.9 Clarity
TransparentUlrich Henn and Claudio C. Milisenda
Not Available

Gahnospinel and Rosasite Optic Character

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

Gahnospinel and Rosasite Transparency

Similar to their colors, Gahnospinel and Rosasite 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.