Formula: Cu3Se2
Reflected/transmitted colour:
Pleochroism: RL pronounced, reddish purple to grayish white
Optical isotropy/anisotropy: RL very strong, fiery orange to straw-yellwo with a rose tint
Optical sign:
Refractive indices:
Bireflectance/Birefringence δ:
2V angle:
Dispersion:
Optical orientation:
Optical axial plane:
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