Uranophane
A variety of Uranophane Group

What is Uranophane?
Uranophane (Ca(UO2)2(SiO3OH)2·5H2O), also known as uranotile, is a rare calcium uranium silicate hydrate mineral that forms from the oxidation of other uranium-bearing minerals. It has a yellow color and is radioactive.
Uranophane Market Value Calculator
Estimate the market value of Uranophane using size, quality, and finish. This preview calculator is for quick context and is not a formal appraisal.
Uranophane Localities Map
See where Uranophane is found with a localities map, collecting zones, and geology context. Generate a sample map preview below.
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North ZoneCentral RidgeSouth Basin
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© Robert M. Lavinsky
Quick Facts
Physical Properties
- Color
- Light yellow, lemon-yellow, honey-yellow, straw-yellow, green-yellow
- Hardness (Mohs)
- 2 - 3
- Density
- 3.78 g/cm³
Chemical Properties
- Chemical Formula
- Ca(UO2)2(SiO3OH)2•5H2O
- Elements
- Ca, H, O, Si, U
Also Known As
UranophaneLambertiteUranotilΑ-uranotile
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