Rhodochrosite and Sugilite Optical Properties

Rhodochrosite

Sugilite

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1 Optical Properties

1.1 Luster

Vitreous

1.2 Pleochroism

Weak

1.3 Dispersion

0.02NA

0.007 1

1.4 Transparency

Transparent, Opaque, Transparent to nearly opaque

Translucent

1.5 Refractive Index

1.601.607-1.612

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Trigonal

Hexagonal

1.8 Birefringence

0.208-0.2200.003

0 0.296

1.9 Clarity

Transparent to nearly opaque

Translucent

Rhodochrosite and Sugilite Optic Character

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

Similar to their colors, Rhodochrosite and Sugilite 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, Rhodochrosite is Opaque, Transparent and Transparent to nearly opaque while Rhodochrosite is Opaque, Transparent and Transparent to nearly opaque in appearance.