Carnallite and Rosasite Optical Properties

Carnallite

Rosasite

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1 Optical Properties

1.1 Luster

Greasy

Silky, Vitreous

1.2 Pleochroism

Not Available

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

1.3 Dispersion

NANA

0.007 1

1.4 Transparency

Not Available

1.5 Refractive Index

1.4671.672-1.688

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Orthorhombic

monoclinic

1.8 Birefringence

0.02700.139-0.143

0 0.296

1.9 Clarity

Not Available

Carnallite and Rosasite Optic Character

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

Similar to their colors, Carnallite 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, Carnallite is Not Available while Carnallite is Not Available in appearance.