alabaster (Scope note)
Alabaster is calcium sulphate, but the word 'alabaster' in Egyptian, Near Eastern and Greek archaeology has been commonly misused for objects which in fact are made of calcite (calcium carbonate). Thus when searching for 'alabaster' objects, users are recommended to search for Material 'calcite' as well as 'alabaster'. N.B. The suggestion by some authorities to use the term 'travertine' for Egyptian alabaster (ie. calcite) is not generally accepted.