Formula: U(PO4)(OH).2.5H2O
Reflected/transmitted colour:
Pleochroism: Weak, in shades of pale green
Optical isotropy/anisotropy: Biaxial
Optical sign: -
Refractive indices: α = 1.700, β = 1.726-1.729, γ = 1.729-1.731
Bireflectance/Birefringence δ: 0.029-0.031
2V angle: small (measured)
Dispersion:
Optical orientation: positive elongation
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 |