Formula: Pb5Bi4S11
Reflected/transmitted colour: opaque, polished section white
Pleochroism: weak, white with blue tint to brown to light gray
Optical isotropy/anisotropy: strong, in gray-bluish and yellowish colours
Optical sign:
Refractive indices:
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 |