Formula: Fe5Si3
Reflected/transmitted colour: RL gray with a yellow tint
Pleochroism:
Optical isotropy/anisotropy: Uniaxial, RL moderate, bluish gray to pale brown
Optical sign: ?
Refractive indices:
Bireflectance/Birefringence δ:
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 |