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Colemanite
Colemanite

Fibrolite
Fibrolite



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Colemanite
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Fibrolite

Colemanite and Fibrolite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous
Not Available
1.2 Pleochroism
NilArthur Thomas
DistinctArthur Thomas
1.3 Dispersion
NA0.02
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent
Transparent
1.5 Refractive Index
1.584-1.6151.658-1.678
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Monoclinic Prismatic H-M Symbol (2/m) Space Group: P 21/a
Not Available
1.8 Birefringence
0.028-0.030Not Available
Achroite
0 0.296
1.9 Clarity
Transparent
Transparent

Colemanite and Fibrolite Optic Character

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

Colemanite and Fibrolite Transparency

Similar to their colors, Colemanite and Fibrolite 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, Colemanite is Transparent while Colemanite is Transparent in appearance.