Hureaulite and Inderite Optical Properties

Hureaulite

Inderite

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1 Optical Properties

1.1 Luster

Vitreous, Greasy

Vitreous, Pearly, Greasy

1.2 Pleochroism

Colorless yellow to pale rose reddish yellow to reddish brown.Anthony et al

Not Available

1.3 Dispersion

NANA

0.007 1

1.4 Transparency

Transparent

Gemmological Tables (2004)

1.5 Refractive Index

1.647-1.6671.488-1.505

1 3.25

1.6 Optic Character

Not Available

Biaxial/+

1.7 Crystal System

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

Monoclinic Prismatic H-M Symbol (2/m) Space Group: P 21/a

1.8 Birefringence

0.0120.017

0 0.296

1.9 Clarity

Transparent

TransparentUlrich Henn and Claudio C. Milisenda

Hureaulite and Inderite Optic Character

Hureaulite and Inderite optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Hureaulite and Inderite 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 Hureaulite and Inderite 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. Inderite has Biaxial/+ character.

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Hureaulite and Inderite Transparency

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