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Mottramite
Mottramite

Hureaulite
Hureaulite



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Mottramite
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Hureaulite

Mottramite and Hureaulite Optical Properties

Optical Properties

Luster

Greasy
Vitreous, Greasy

Pleochroism

Visible X=Y= canary yellow to greenish yellow
Colorless yellow to pale rose reddish yellow to reddish brown.Anthony et al

Dispersion

0.040.02
0.005 1
👆🏻

Transparency

-
Transparent

Refractive Index

2.1701.647-1.667
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Orthorhombic
Monoclinic Prismatic H-M Symbol (2/m) Space Group: C 2/c

Birefringence

0.1500.012
0 0.296
👆🏻

Clarity

-
Transparent

Mottramite and Hureaulite Optic Character

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

Similar to their colors, Mottramite and Hureaulite 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 while Mottramite is in appearance.