@article{keele761, author = "AJ Jeffery and R Gertisser and RA Jackson and B O'Driscoll and Andreas Kronz", journal = "Mineralogical Magazine", month = "January", note = "Published online before print.", publisher = "Mineralogical Society", title = "{O}n the compositional variability of dalyite, {K}2{Z}r{S}i6{O}15: a new occurrence from {T}erceira, {A}zores", url = "http://eprints.keele.ac.uk/761/", year = "2016", }