Formula: TlCu6Se4
Reflected/transmitted colour: Bluish gray with slight cream tint
Pleochroism: Distinct, in light brown to light blue
Optical isotropy/anisotropy: Strong, with undulatory extinction, colors in light gray-blue to dark yellow-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 |