Mother of Pearl and Rosasite Optical Properties

Mother of Pearl

Rosasite

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1 Optical Properties

1.1 Luster

Not Available

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

Gemmological Tables (2004)

Not Available

1.5 Refractive Index

1.53-1.691.672-1.688

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Not Available

monoclinic

1.8 Birefringence

0.160.139-0.143

0 0.296

1.9 Clarity

Gemmological Tables (2004)

Not Available

Mother of Pearl and Rosasite Optic Character

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

Similar to their colors, Mother of Pearl 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, Mother of Pearl is Gemmological Tables (2004) while Mother of Pearl is Gemmological Tables (2004) in appearance.