Rhodochrosite and London blue topaz Optical Properties

Rhodochrosite

London blue topaz

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1 Optical Properties

1.1 Luster

Vitreous

Not Available

1.2 Pleochroism

Weak

Not Available

1.3 Dispersion

0.02NA

0.007 1

1.4 Transparency

Transparent, Opaque, Transparent to nearly opaque

Not Available

1.5 Refractive Index

1.60Not Available

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

Not Available

Rhodochrosite and London blue topaz Optic Character

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

Similar to their colors, Rhodochrosite and London blue topaz 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.