Wakefieldite

Formula: (Ce2+,Pb2+,Pb4+,Y)VO4

Reflected/transmitted colour:

Pleochroism: Yellow (ω) (Ce)

Optical isotropy/anisotropy: Uniaxial

Optical sign: ? (Ce), + (Y)

Refractive indices: b = 2 (Ce), ω = 2, ε = 2.14 (Y)

Bireflectance/Birefringence δ: 0.14 (Y)

2V angle:

Dispersion:

Optical orientation:

Optical axial plane:

 

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