Assertion: icosahedron | /r/HasProperty | close-packed
Facets:
value: highly
type: DEGREE
Source sentences:
text: Abstract Icosahedral order has been suggested as the prevalent atomic motif of supercooled liquids and metallic glasses for more than half a century, because the icosahedron is highly close-packed but is difficult to grow, owing to structure frustration and the lack of translational periodicity.