Formula: AgPb4Sb4S10
Reflected/transmitted colour: RL white with a faint yellowish tint to light gray
Pleochroism:
Optical isotropy/anisotropy: Strong, from light to dark gray with a faint greenish tint
Optical sign:
Refractive indices:
Bireflectance/Birefringence δ:
2V angle:
Dispersion:
Optical orientation:
Optical axial plane:
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