Jasper and Rosasite Optical Properties

Jasper

Rosasite

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1 Optical Properties

1.1 Luster

Vitreous

Silky, Vitreous

1.2 Pleochroism

AbsentWalter Schumann

Strong: X = pale emerald green or colourless; Y = dark emerald green or pale blue; Z = dark emerald green or pale blue

1.3 Dispersion

NoneNA

0.007 1

1.4 Transparency

Opaque

Not Available

1.5 Refractive Index

1.5401.672-1.688

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Trigonal

monoclinic

1.8 Birefringence

Not Available0.139-0.143

0 0.296

1.9 Clarity

OpaqueHerve Nicolas Lazzarelli

Not Available

Jasper and Rosasite Optic Character

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

Similar to their colors, Jasper and Rosasite 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.