ore
[C/U] Both
pl: ores
This term carries a strong industrial and geological connotation, evoking images of deep mines, heavy machinery, and the raw, unrefined state of nature. It implies a potential value that is currently locked away, requiring heat, chemicals, or mechanical force to be released. While a rock is any geological solid, an ore is specifically a rock with economic utility. Using this word suggests a commercial or systemic perspective on the earth, viewing the landscape as a resource for extraction rather than just a natural feature.
Countable when referring to different types of minerals, such as gold ore and copper ore. Uncountable when referring to the bulk raw material being transported on a conveyor belt.