Iris Quartz
A variety of Quartz
What is Iris Quartz?
Also known as rainbow quartz, iris Quartz is a colorless quartz variety that contains thin, air-filled cracks that produce rainbow colors when hit by light. Iris Quartz is usually seen in crystal form since the material can't be cut into gems without losing its rainbow effect.
Optical Properties
- Refractive Index
- 1.544-1.553
- Birefringence
- 0.009
- Pleochroism
- Weakly dichroic
- Optical Character
- Biaxial positive
- Dispersion
- 0.013
Iris Quartz Market Value Calculator
Estimate the market value of Iris Quartz using size, quality, and finish. This preview calculator is for quick context and is not a formal appraisal.
Iris Quartz Localities Map
See where Iris Quartz is found with a localities map, collecting zones, and geology context. Generate a sample map preview below.
Map preview
North ZoneCentral RidgeSouth Basin
Quick Facts
Physical Properties
- Color
- Iridescent, White
- Streak
- White
Chemical Properties
- Chemical Formula
- SiO2
- Elements
- O, Si
Also Known As
Iris QuartzRainbow QuartzIridescent Quartz
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