Rosasite and Tavorite Optical Properties

Rosasite

Tavorite

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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

Yellow-green colorlessAnthony et al

1.3 Dispersion

NANA

0.007 1

1.4 Transparency

Not Available

Transparent

1.5 Refractive Index

1.672-1.6881

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

monoclinic

Not Available

1.8 Birefringence

0.139-0.143Not Available

0 0.296

1.9 Clarity

Not Available

Transparent

Rosasite and Tavorite Optic Character

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

Similar to their colors, Rosasite and Tavorite 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.