Rhodochrosite and Omphacite Optical Properties

Rhodochrosite

Omphacite

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1 Optical Properties

1.1 Luster

Vitreous

1.2 Pleochroism

Weak

Weak: colorless -- very pale green -- very pale green

1.3 Dispersion

0.02NA

0.007 1

1.4 Transparency

Transparent, Opaque, Transparent to nearly opaque

TranslucentAnthony et al, Handbook of mineralogy (2001)

1.5 Refractive Index

1.601.662-1.723

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Trigonal

Not Available

1.8 Birefringence

0.208-0.220Not Available

0 0.296

1.9 Clarity

Transparent to nearly opaque

TranslucentAnthony et al

Rhodochrosite and Omphacite Optic Character

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

Similar to their colors, Rhodochrosite and Omphacite 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.