Assertion: astatine's appearance | /r/HasProperty | metallic
Facets:
Source sentences:
text: Astatine may be dark, or it may have a metallic appearance and be a semiconductor, or it may even be a metal.
text: So the result is a mixture of information, with some references saying the colour of astatine is unknown, and others noting—either as statements or extrapolations—that astatine either has, or probably has, a black or metallic appearance.
text: Astatine, being more metallic than iodine, is most likely to have a silvery metallic appearance, or at least a metallic appearance.