Zippeite

Formula: K(UO2)2SO4(OH)3.H2O

Reflected/transmitted colour:

Pleochroism: Colourless (x), pale yellow (y), yellow (z)

Optical isotropy/anisotropy: Biaxial

Optical sign: -

Refractive indices: α = 1.55-1.655, β = 1.717, γ = 1.765

Bireflectance/Birefringence δ: 0.115-0.215

2V angle:

Dispersion:

Optical orientation:

Optical axial plane:

 

Back to Alphabetical list Colour photos Physical, chemical and crystallographic description SEM images TEM images vibrational spectra description IR spectra Raman spectra N-IR spectra F-IR spectra IES spectra