Assertion: iridium | /r/HasProperty | hard
Facets:
value: very
type: DEGREE
value: an order of magnitude harder
type: OTHER
Source sentences:
text: Iridium is a metallic element that is both hard and brittle.
text: There is a misconception that iridium is hard to use and that is not true.
text: Iridium is an extremely hard metal element, almost an order of magnitude harder and stronger than platinum.
text: Iridium is an extremely hard metallic element, related to platinum, which is thought to occur on earth primarily due to an enormous meteor impact millions of years ago.
text: Iridium can be hard when it is correctly applied to spark plugs.
text: Because iridium is very hard and brittle, it is very difficult to use or to be shaped.
text: Iridium is very hard and brittle and hardens other metals with which it is alloyed, especially platinum.
text: Iridium is hard and brittle with low ductility, which makes it very difficult to machine and form.
text: Because iridium is very hard and brittle, it is hard to machine, form, or work.