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Cordierite Iolite
Cordierite Iolite

Barite
Barite



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Cordierite Iolite
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Barite

Cordierite Iolite and Barite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous
Vitreous
1.2 Pleochroism
Strong trichroism: colorless to yellowish
colorless.
1.3 Dispersion
0.02NA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent
Not Available
1.5 Refractive Index
1.542-1.578Not Available
Agate Opal
1 3.25
1.6 Optic Character
Biaxial/+
Not Available
1.7 Crystal System
Not Available
Orthorhombic
1.8 Birefringence
0.008-0.012Not Available
Achroite
0 0.296
1.9 Clarity
Transparent
Not Available

Cordierite Iolite and Barite Optic Character

Cordierite Iolite and Barite optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Cordierite Iolite and Barite 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 Cordierite Iolite and Barite 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. Cordierite Iolite has Biaxial/+ character.

Cordierite Iolite and Barite Transparency

Similar to their colors, Cordierite Iolite and Barite 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, Cordierite Iolite is Transparent while Cordierite Iolite is Transparent in appearance.