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Verdelite
Verdelite

Siderite
Siderite



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Verdelite
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Siderite

Verdelite and Siderite Optical Properties

Optical Properties

Luster

-
Pearly

Pleochroism

Strong: dark green yellow
-

Dispersion

0.020.04
0.005 1
👆🏻

Transparency

Transparent, Translucent
Transparent, Translucent

Refractive Index

1.614-1.6661.633-1.875
1 3.25
👆🏻

Optic Character

-
-

Crystal System

-
Trigonal

Birefringence

0.014-0.0400.242
0 0.296
👆🏻

Clarity

Transparent
Transparent

Verdelite and Siderite Optic Character

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

Verdelite and Siderite Transparency

Similar to their colors, Verdelite 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, Verdelite is Transparent and Translucent while Verdelite is Transparent and Translucent in appearance.