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Siderite
Siderite

Scheelite
Scheelite



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Siderite
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Scheelite

Siderite and Scheelite Optical Properties

1 Optical Properties
1.1 Luster
Pearly
Vitreous, Adamantine
1.2 Pleochroism
Not Available
Definite dichoric in yellow (yellow to orange-brown)
1.3 Dispersion
NA0.04
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent, Translucent
Translucent, Transparent
1.5 Refractive Index
1.633-1.8751.918-1.936
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Trigonal
tetragonal
1.8 Birefringence
0.2420.016
Achroite
0 0.296
1.9 Clarity
Transparent
Translucent

Siderite and Scheelite Optic Character

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

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