WebMineral

Webmineral is an online mineral information resource and database that provides detailed data on mineral species. The site compiles chemical, crystallographic, physical, optical, occurrence, and locality information from primary literature and reference works, presenting it in standardized entries for hundreds of minerals.

Each mineral entry typically includes chemical formula, crystal system and symmetry, unit-cell parameters, and, when known, space group. Physical properties such as hardness, specific gravity, color, luster, streak, cleavage, and fracture are listed, along with optical properties including refractive indices, birefringence, and optic sign. Crystallographic data may cover structure type and, where available, detailed structural parameters.

Occurrence and locality sections describe typical geological environments and notable localities, and entries often cite type specimens and original descriptions. The database also notes synonyms and historical names, aiding cross-referencing across literature. Classification schemes used in Webmineral reflect established mineral taxonomies and are commonly aligned with recognized systems such as Dana or Strunz, with links to related minerals and chemical families.

Access is free via the web, with search functionality by mineral name, chemical formula, or property. Pages may include images or diagrams illustrating crystal habit or structure. Webmineral is used by students, educators, researchers, and collectors as a reference for mineral data, often complementing other databases and resources in mineralogy.