Cecil Edgar Tilley FRS,[1] Hon FRSE, PGS (14 May 1894 – 24 January 1973) was an Australian-British petrologist and geologist.
In 1916, during the First World War, he went to South Queensferry near Edinburgh in Scotland to work as a chemist Department of Explosives Supply.
[2] He won an Exhibition of 1851 scholarship to the University of Cambridge in 1919, where he studied petrology under Alfred Harker, and completed his PhD in 1922.
[3] In 1929, while investigating a volcanic plug at Scawt Hill, near Larne, Northern Ireland for the Mineralogical Magazine he identified and named the new minerals larnite and scawtite.
In 1928 he married Irene Doris Marshall at Holy Trinity Church, Kingsway, London.