List of minerals recognized by the International Mineralogical Association (E)

The International Mineralogical Association (IMA) maintains a comprehensive and authoritative list of recognized mineral species. This list represents the consensus of the global mineralogical community regarding what constitutes a valid mineral. The IMA's Commission on New Minerals, Nomenclature and Classification (CNMNC) is responsible for reviewing proposals for new minerals, redefinitions of existing minerals, and nomenclature changes.

The IMA list is dynamic, with additions and revisions occurring periodically as new discoveries are made and scientific understanding evolves. A mineral on the IMA list must meet specific criteria, including having a defined chemical composition, a characteristic crystal structure (although some amorphous substances can be considered minerals), and having formed through natural geological processes. Minerals of solely biological origin are generally not considered minerals by the IMA, nor are synthetic compounds.

The designation "(E)" appended to some entries on the IMA list typically indicates a mineral species that is considered established. This implies that the mineral has been sufficiently characterized and its existence is well-documented in the scientific literature. It signifies a higher level of certainty compared to minerals that may be considered hypothetical or of uncertain validity. However, even minerals with the (E) designation can be subject to reevaluation if new data emerges that challenges their established status. Accessing the most up-to-date version of the official IMA list is crucial for accuracy in mineralogical studies and classification. The list provides key information such as the mineral's chemical formula, crystal system, space group, and references to relevant publications.