Assertion: siderite's source | /r/CapableOf | exploit rarer iron oxide minerals
Facets:
value: comparatively
type: MANNER
Source sentences:
text: The thermodynamic barriers to separating pure iron from these minerals are formidable and energy-intensive, therefore all sources of iron used by human industry exploit comparatively rarer iron oxide minerals, primarily hematite.
text: The thermodynamic barriers to separating pure iron from these minerals are formidable and energy intensive, therefore all sources of iron used by human industry exploit comparatively rarer iron oxide minerals, primarily hematite.