Formula: Al3(UO2)4(PO4)4(OH)5.5H2O
Reflected/transmitted colour:
Pleochroism: Pale yellow-green (Y), bright yellow (Z)
Optical isotropy/anisotropy: Biaxial
Optical sign: +
Refractive indices: a=1.639, b=1.665, g=1.704
Bireflectance/Birefringence δ: 0.065
2V angle: 82 (calculated), 80 (measured)
Dispersion:
Optical orientation: X ^ {100}, Z » [011]
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 |