Jasper and Hureaulite Optical Properties

Jasper

Hureaulite

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1 Optical Properties

1.1 Luster

Vitreous

Vitreous, Greasy

1.2 Pleochroism

AbsentWalter Schumann

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

1.3 Dispersion

NoneNA

0.007 1

1.4 Transparency

Opaque

Transparent

1.5 Refractive Index

1.5401.647-1.667

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Trigonal

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

1.8 Birefringence

Not Available0.012

0 0.296

1.9 Clarity

OpaqueHerve Nicolas Lazzarelli

Transparent

Jasper and Hureaulite Optic Character

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

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Jasper and Hureaulite Transparency

Similar to their colors, Jasper 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, Jasper is Opaque while Jasper is Opaque in appearance.