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Mottramite
Mottramite

Kornerupine
Kornerupine



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Mottramite
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Kornerupine

Mottramite and Kornerupine Optical Properties

1 Optical Properties
1.1 Luster
Greasy
Vitreous
1.2 Pleochroism
Visible X=Y= canary yellow to greenish yellow
X = colorless to green; Y = colorless
1.3 Dispersion
NA0.02
Fluorite Optical Properties
0.007 1
1.4 Transparency
Not Available
Gemmological Tables (2004) More from other references
1.5 Refractive Index
2.1701.660-1.685
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Orthorhombic
Orthorhombic
1.8 Birefringence
0.1500.012-0.017
Achroite
0 0.296
1.9 Clarity
Not Available
TransparentUlrich Henn and Claudio C. Milisenda

Mottramite and Kornerupine Optic Character

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

Mottramite and Kornerupine Transparency

Similar to their colors, Mottramite and Kornerupine 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, Mottramite is Not Available while Mottramite is Not Available in appearance.