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Adularia
Adularia

Gahnospinel
Gahnospinel



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Adularia
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Gahnospinel

Adularia and Gahnospinel Optical Properties

1 Optical Properties
1.1 Luster
Not Available
Vitreous
1.2 Pleochroism
Not Available
AbsentWalter Schumann
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
TransparentArthur Thomas, Gemstones (2009)
Gemmological Tables (2004)
1.5 Refractive Index
1.518-1.5361.735-1.790
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Not Available
Isometric
1.8 Birefringence
0.005-0.008Not Available
Achroite
0 0.296
1.9 Clarity
TransparentArthur Thomas
TransparentUlrich Henn and Claudio C. Milisenda

Adularia and Gahnospinel Optic Character

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

Adularia and Gahnospinel Transparency

Similar to their colors, Adularia and Gahnospinel 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, Adularia is Gemstones (2009) and TransparentArthur Thomas while Adularia is Gemstones (2009) and TransparentArthur Thomas in appearance.