Assertion: germanium | /r/CapableOf | retain its lustre
Facets:
value: in air
type: LOCATION
value: at room temperature
type: LOCATION
Source sentences:
text: Germanium is a gray-white semi-metal, and in its pure state is crystalline and brittle, retaining its lustre in air at room temperature.
text: Germanium is a gray-white semi-metal, and in its pure state is crystalline and brittle, retaining its lustre in air at room temperature.