Cadmoselite

Formula: CdSe

Reflected/transmitted colour: Light gray, slightly brownish in oil, with brownish internal reflections

Pleochroism:

Optical isotropy/anisotropy: weak, straight extinction relative to cleavage

Optical sign:

Refractive indices:

Bireflectance/Birefringence δ: not observed

2V angle:

Dispersion:

Optical orientation:

Optical axial plane:

 

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