Rosasite and Hibschite Optical Properties

Rosasite

Hibschite

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1 Optical Properties

1.1 Luster

Silky, Vitreous

Vitreous

1.2 Pleochroism

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

Not Available

1.3 Dispersion

NANA

0.007 1

1.4 Transparency

Not Available

Semitransparent

1.5 Refractive Index

1.672-1.688Not Available

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

monoclinic

Isometric Hexoctahedral H-M Symbol (4/m 3 2/m) Space Group: I a3d

1.8 Birefringence

0.139-0.143Not Available

0 0.296

1.9 Clarity

Not Available

TranslucentAnthony et al

Rosasite and Hibschite Optic Character

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

Similar to their colors, Rosasite and Hibschite 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, Rosasite is Not Available while Rosasite is Not Available in appearance.