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Siderite
Siderite

Druzy
Druzy



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Siderite
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Druzy

Siderite and Druzy Optical Properties

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Optical Properties

Luster

Pearly
-

Pleochroism

-
-

Dispersion

0.040.01
0.005 1
👆🏻

Transparency

Transparent, Translucent
Opaque

Refractive Index

1.633-1.875-9999
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Trigonal
Isometric

Birefringence

0.242-9999
0 0.296
👆🏻

Clarity

Transparent
Opaque

Siderite and Druzy Optic Character

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

Siderite and Druzy Transparency

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