Formula: AuSn
Reflected/transmitted colour: RL white with a light yellow tint
Pleochroism:
Optical isotropy/anisotropy: RL clear, light yellow with brown tint
Optical sign:
Refractive indices:
Bireflectance/Birefringence δ: Faint
2V angle:
Dispersion:
Optical orientation:
Optical axial plane:
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