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Phosphosiderite
Phosphosiderite

Malachite
Malachite



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Phosphosiderite
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Malachite

Phosphosiderite and Malachite Optical Properties

Optical Properties

Luster

Vitreous
Adamantine, Vitreous, Silky

Pleochroism

Pale rose-red carmine-red colorlessAnthony et al
-

Dispersion

0.040.04
0.005 1
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Transparency

Transparent
Opaque

Refractive Index

1.692-1.7391.655-1.909
1 3.25
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Optic Character

-
-

Crystal System

-
monoclinic

Birefringence

0.2400.254
0 0.296
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Clarity

Transparent
-

Phosphosiderite and Malachite Optic Character

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

Phosphosiderite and Malachite Transparency

Similar to their colors, Phosphosiderite and Malachite 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, Phosphosiderite is Transparent while Phosphosiderite is Transparent in appearance.