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Mottramite
Mottramite

Emerald
Emerald



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Mottramite
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Emerald

Mottramite and Emerald Optical Properties

1 Optical Properties
1.1 Luster
Greasy
Vitreous
1.2 Pleochroism
Visible X=Y= canary yellow to greenish yellow
Strong dichroism: yellow green Lazzarelli
1.3 Dispersion
NA0.01
Fluorite Optical Properties
0.007 1
1.4 Transparency
Not Available
Transparent, Translucent, Transparent to translucent
1.5 Refractive Index
2.1701.565-1.602
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Orthorhombic
Hexagonal
1.8 Birefringence
0.1500.0040-0.0070
Achroite
0 0.296
1.9 Clarity
Not Available
Color grading system

Mottramite and Emerald Optic Character

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

Similar to their colors, Mottramite and Emerald 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.