Formula: Ag3CuS2
Reflected/transmitted colour: opaque, polished section light grayish white
Pleochroism:
Optical isotropy/anisotropy: distinct anisotropy, stronger than for acanthite, less pronounced than for stromeyerite and mckinstryite. No violet-blue tints as for stromeyerite, colours are blue-green and light green
Optical sign:
Refractive indices:
Birefringence δ/bireflectance: only visible in oil, brownish gray to gray
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 |