Delafossite is a rare mineral that belongs to the oxide mineral group. It is also known as copper iron oxide or the general formula ABO2. Some synonyms used for delafossite include synthetic minerals such as cuprospinel, γ-CuFe2O4, and CuFeO2. Delafossite is a naturally occurring mineral and has been found in a variety of geological settings, including volcanic rocks, metamorphic rocks and hydrothermal veins. This mineral is used in a range of applications including as a cathode material for lithium-ion batteries, a transparent conductor in electronic devices, and as a catalyst in various chemical reactions. Delafossite is often used interchangeably with cuproromeite, which is another copper iron oxide mineral with a slightly different crystal structure.