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Siderite
Siderite

Simpsonite
Simpsonite



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Siderite
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Simpsonite

Siderite and Simpsonite Optical Properties

1 Optical Properties
1.1 Luster
Pearly
Adamantine
1.2 Pleochroism
Not Available
NilArthur Thomas
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent, Translucent
Gemmological Tables (2004) More from other references
1.5 Refractive Index
1.633-1.8751.994-2.040
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Trigonal
Not Available
1.8 Birefringence
0.2420.046
Achroite
0 0.296
1.9 Clarity
Transparent
Gemmological Tables (2004) More from other references

Siderite and Simpsonite Optic Character

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

Similar to their colors, Siderite and Simpsonite 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.