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Siderite
Siderite

Monazite
Monazite



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Siderite
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Monazite

Siderite and Monazite Optical Properties

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Optical Properties

Luster

Pearly
-

Pleochroism

-
-

Dispersion

0.040.02
0.005 1
👆🏻

Transparency

Transparent, Translucent
-

Refractive Index

1.633-1.8751.796-1.841
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Trigonal
-

Birefringence

0.2420.045
0 0.296
👆🏻

Clarity

Transparent
TransparentUlrich Henn and Claudio C. Milisenda

Siderite and Monazite Optic Character

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

Similar to their colors, Siderite and Monazite 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.