Assertion: beryllium | /r/HasProperty | hard
Facets:
value: at room temperature
type: OTHER
Source sentences:
text: Beryllium is a silver-grey metal and is hard and brittle at room temperature.
text: Beryllium is a steel gray and hard metal that is brittle at room temperature and has a close-packed hexagonal crystal structure.
text: Beryllium is a hard and light metal that has a high melting point and unique nuclear properties, which make it vital to numerous aerospace and military applications.
text: Though Beryllium is a relatively soft metal, it is actually hard and at room temperature, it is a brittle element.
text: Beryllium is light, hard and strong.
text: Beryllium is light, hard and strong.