Assertion: arsenopyrite's composition | /r/HasProperty | 0.25 per cent
Facets:
Source sentences:
text: An ideal structural material is an alloy steel to which the name chromol steel has been given, having the following composition: 0.25 per cent, carbon, 0.75 per cent, manganese, 0.75 per cent, chrome, and 0.75 per cent, molybdenum.