Formula: Sn
Reflected/transmitted colour: opaque, polished section creamy white
Pleochroism:
Optical isotropy/anisotropy: weak anisotropic, yellowish or brownish gray to bluish gray
Optical sign:
Refractive indices:
Birefringence δ/bireflectance: air: not present, oil: creamy white to brownish gray (on grain boundaries)
2V angle:
Dispersion:
Optical orientation:
Optical axial plane:
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