a copper oxide mineral with the formula Cu2O, containing around 88% copper by weight. Named in 1845 from the Latin "cuprum," in allusion to its composition. Its appearance is dark red to cochineal red, sometimes almost black.
synonyms: red copper, ruby copper
---
note: Cuprite is one of the highest copper content minerals, and is also known as Ruby Copper due to its gemstone-like appearance.
---