Neither “amphibole” nor “hornblende” is an accepted mineral species: the IMA list contains no entry for either, though both are in constant use in field and laboratory description.
- precision note: Anorthoclase, another familiar feldspar name, is likewise absent from the list of accepted species.
Evidence support: Supported by the cited evidence one source
Evidence: Commission on New Minerals, Nomenclature and Classification, International Mineralogical Association 2026 Primary authority