Rosasite and Scapolite Optical Properties

Rosasite

Scapolite

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1 Optical Properties

1.1 Luster

Silky, Vitreous

Not Available

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

NA0.02

0.007 1

1.4 Transparency

Not Available

Gemmological Tables (2004) More from other references

1.5 Refractive Index

1.672-1.6881.540-1.579

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

monoclinic

tetragonal

1.8 Birefringence

0.139-0.1430.006-0.037

0 0.296

1.9 Clarity

Not Available

TransparentUlrich Henn and Claudio C. Milisenda

Rosasite and Scapolite Optic Character

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

Similar to their colors, Rosasite and Scapolite 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.