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Siderite
Siderite

Tigers Eye
Tigers Eye



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Tigers Eye

Siderite and Tigers Eye Optical Properties

1 Optical Properties
1.1 Luster
Pearly
Silky
1.2 Pleochroism
Not Available
Not Available
1.3 Dispersion
Albite Optical ..
Not Available
Rank: N/A (Overall)
None
Rank: N/A (Overall)
Fluorite Optical Properties
1.4 Transparency
Transparent, Translucent
Opaque
1.5 Refractive Index
1.633-1.875
1.534-1.540
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Trigonal
Trigonal
1.8 Birefringence
0.242
Not Available
1.9 Clarity
Transparent
Gemstones of the world (2001) More from other references

Siderite and Tigers Eye Optic Character

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

Similar to their colors, Siderite and Tigers Eye 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.