Rhodochrosite and Phosphosiderite Optical Properties

Rhodochrosite

Phosphosiderite

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1 Optical Properties

1.1 Luster

Vitreous

1.2 Pleochroism

Weak

Pale rose-red carmine-red colorlessAnthony et al

1.3 Dispersion

0.02NA

0.007 1

1.4 Transparency

Transparent, Opaque, Transparent to nearly opaque

Transparent

1.5 Refractive Index

1.601.692-1.739

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Trigonal

Not Available

1.8 Birefringence

0.208-0.2200.240

0 0.296

1.9 Clarity

Transparent to nearly opaque

Transparent

Rhodochrosite and Phosphosiderite Optic Character

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

Similar to their colors, Rhodochrosite and Phosphosiderite 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.