Lead sulphide, also known as galena, is a naturally occurring mineral composed of lead and sulfur. It is primarily mined for its lead content, which is used in various applications, including batteries, radiation shielding, and ammunition. Galena has a metallic luster and is typically found in cubic crystals, making it easily recognizable. In addition to its industrial uses, lead sulphide is also of interest in the field of semiconductors. It exhibits semiconductor properties, which can be utilized in electronic devices. However, due to the toxicity of lead, handling and disposal of lead sulphide must be done with caution to prevent environmental contamination.