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Verdite
Verdite

Siderite
Siderite



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Verdite
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Siderite

Verdite and Siderite Optical Properties

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Optical Properties

Luster

Vitreous, Silky
Pearly

Pleochroism

Extreme
-

Dispersion

0.030.04
0.005 1
👆🏻

Transparency

Translucent
Transparent, Translucent

Refractive Index

1.5801.633-1.875
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Monoclinic Prismatic H-M Symbol (2/m) Space Group: C 2/c
Trigonal

Birefringence

-99990.242
0 0.296
👆🏻

Clarity

Translucent
Transparent

Verdite and Siderite Optic Character

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

Verdite and Siderite Transparency

Similar to their colors, Verdite and Siderite 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, Verdite is Translucent while Verdite is Translucent in appearance.