Vanuralite

Formula: Al(UO2)2V2O8(OH).11H2O

Reflected/transmitted colour:

Pleochroism:

Optical isotropy/anisotropy: Biaxial

Optical sign: -

Refractive indices: α = 1.65, β = 1.85, γ = 1.90

Bireflectance/Birefringence δ: 0.25

2V angle: 48° (calculated), 44° (measured)

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