IGSN (International GeoSample Number)

The International GeoSample Number (IGSN) is a unique identifier assigned to physical samples collected in geological, environmental, and scientific research, such as soil, rock, or sediment samples. It helps researchers accurately track, manage, and share samples across studies and institutions. Think of it as a label that ensures each sample has a distinct identity, making it easier to locate and reference later. This system improves data organization, promotes transparency, and supports reproducibility in scientific research involving physical samples.