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Siderite
Siderite

Serandite
Serandite



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Siderite
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Serandite

Siderite and Serandite Optical Properties

Optical Properties

Luster

Pearly
Vitreous, Silky, Greasy

Pleochroism

-
-

Dispersion

0.040.01
0.005 1
👆🏻

Transparency

Transparent, Translucent
-

Refractive Index

1.633-1.8751.672-1.708
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Trigonal
-

Birefringence

0.2420.036
0 0.296
👆🏻

Clarity

Transparent
TransparentUlrich Henn and Claudio C. Milisenda

Siderite and Serandite Optic Character

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

Similar to their colors, Siderite and Serandite 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.