Assertion: iron | /r/HasProperty | a trace mineral
Facets:
Source sentences:
text: Although iron is a trace mineral, it is extremely important, because a deficiency in this nutrient leads to a shortage of red blood cells, a condition known as anemia.
text: Iron is a trace element necessary for photosynthesis in plants.
text: Iron, the metal, is an element that is also a trace nutrient mineral that we all need to consume as a part of our everyday diet.
text: Iron is one of the trace elements in marine environments.
text: Iron is a trace mineral needed to make hemoglobin, the protein needed to carry oxygen throughout the body.