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Siderite
Siderite

Lizardite
Lizardite



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Siderite
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Lizardite

Siderite and Lizardite Optical Properties

1 Optical Properties
1.1 Luster
Pearly
Not Available
1.2 Pleochroism
Not Available
Not Available
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent, Translucent
TranslucentAnthony et al, Handbook of mineralogy (2001)
1.5 Refractive Index
1.633-1.8751.538-1.560
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Trigonal
Not Available
1.8 Birefringence
0.242Not Available
Achroite
0 0.296
1.9 Clarity
Transparent
TranslucentAnthony et al

Siderite and Lizardite Optic Character

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

Similar to their colors, Siderite and Lizardite 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.