Home
Gemstones


Rhyolite and Cordierite Iolite Optical Properties


Cordierite Iolite and Rhyolite Optical Properties


Optical Properties

Luster
Not Available   
Vitreous   

Pleochroism
Not Available   
Strong trichroism: colorless to yellowish   

Dispersion
Not Available   
0.02   
22

Transparency
Not Available   
Transparent   

Refractive Index
Not Available   
1.542-1.578   

Optic Character
Not Available   
Biaxial/+   

Crystal System
Trigonal   
Not Available   

Birefringence
Not Available   
0.008-0.012   

Clarity
Not Available   
Transparent   

Benefits >>
<< Physical Properties

Rhyolite and Cordierite Iolite Optic Character

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

Compare Gems for Aquarius

Rhyolite and Cordierite Iolite Transparency

Similar to their colors, Rhyolite 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, Rhyolite is Not Available while Rhyolite is Not Available in appearance.

Gems for Aquarius

Gems for Aquarius


Compare Gems for Aquarius