Formula: CoAsS
Reflected/transmitted colour: silver-white with distinct pinkish, violet or brown tinge
Pleochroism: very weak, on grain boundaries
Optical isotropy/anisotropy: weak to distinct (in oil), blue-gray and brown colour shades
Optical sign:
Refractive indices:
Bireflectance/Birefringence δ: weak. white to pinkish white
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 |