Gemmi

Gemmi is a name associated with more than one notable item, including a mountain pass in the Swiss Alps and an open-source software library used in crystallography.

Gemmi Pass is a high-altitude mountain pass that connects the village of Kandersteg in the canton of Bern with Leukerbad in the canton of Valais. The pass is accessible in the warmer months by road and is popular for hiking, winter sports, and sightseeing. From the pass, visitors can view the surrounding alpine scenery, including nearby peaks and glaciers, making it a notable waypoint for tourists exploring the region.

Gemmi also refers to an open-source software library designed for macromolecular crystallography data processing. It provides data structures and algorithms for reading, writing, and manipulating common structural formats such as CIF and mmCIF, PDB, and MTZ, as well as tools for coordinate handling, validation, and formatting. The library is intended to be accessible from multiple programming languages, supporting workflows in structure determination, refinement, and data management within crystallographic research.