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Atacamite
Atacamite

Phosphosiderite
Phosphosiderite



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Atacamite
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Phosphosiderite

Atacamite and Phosphosiderite Optical Properties

Optical Properties

Luster

Adamantine, Vitreous
Vitreous

Pleochroism

X = pale green; Y = yellow-green; Z = grass-green
Pale rose-red carmine-red colorlessAnthony et al

Dispersion

0.030.04
0.005 1
👆🏻

Transparency

-
Transparent

Refractive Index

1.8311.692-1.739
1 3.25
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Optic Character

-
-

Crystal System

Orthorhombic
-

Birefringence

0.0490.240
0 0.296
👆🏻

Clarity

-
Transparent

Atacamite and Phosphosiderite Optic Character

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

Atacamite and Phosphosiderite Transparency

Similar to their colors, Atacamite 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, Atacamite is while Atacamite is in appearance.