Copper(I) oxide, also known as cuprous oxide, is a chemical compound with the formula Cu2O. It appears as a red or reddish-brown solid and is commonly found in nature as a mineral. This compound is formed when copper reacts with oxygen in low-oxygen environments, making it an important material in various applications, including electronics and ceramics. In addition to its industrial uses, copper(I) oxide plays a role in agriculture as a fungicide. It helps protect crops from fungal infections, contributing to healthier plant growth. Its unique properties make it valuable in both scientific research and practical applications.