Assertion: plutonium | /r/HasProperty | brittle
Facets:
value: at room temperature
type: OTHER
value: very
type: DEGREE
Source sentences:
text: At room temperature, for instance, the plutonium is very brittle, but heated to around 100 Celsius is transforms to a much more malleable metal.
text: First.. plutonium is about as hard and brittle as iron.