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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