Formula: TeO2
Reflected/transmitted colour:
Pleochroism:
Optical isotropy/anisotropy: Biaxial
Optical sign: -
Refractive indices: α = 2.00, β = 2.18, γ = 2.35
Bireflectance/Birefringence δ: 0.35
2V angle: about 90° (measured)
Dispersion: Moderate, r < v
Optical orientation: X = b, Y= a, Z = c
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 |