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Celestine
Celestine

Cordierite Iolite
Cordierite Iolite



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Celestine
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Cordierite Iolite

Celestine and Cordierite Iolite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous, Pearly
Vitreous
1.2 Pleochroism
Weakly trichroiC
Strong trichroism: colorless to yellowish
1.3 Dispersion
NA0.02
Fluorite Optical Properties
0.007 1
1.4 Transparency
Gems
Transparent
1.5 Refractive Index
1.619-1.6351.542-1.578
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Biaxial/+
1.7 Crystal System
Orthorhombic
Not Available
1.8 Birefringence
0.004-0.0120.008-0.012
Achroite
0 0.296
1.9 Clarity
Gems
Transparent

Celestine and Cordierite Iolite Optic Character

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

Celestine and Cordierite Iolite Transparency

Similar to their colors, Celestine and Cordierite Iolite 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, Celestine is Gems while Celestine is Gems in appearance.