Formula: Ca4Mg(UO2)2(CO3)6F2.17H2O
Reflected/transmitted colour:
Pleochroism:
Optical isotropy/anisotropy: biaxial
Optical sign: nd
Refractive indices: nd
Bireflectance/Birefringence δ: nd
2V angle: nd
Dispersion:
Optical orientation:
Optical axial plane:
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