Mineral Evolution Database
Created and maintained by the Mineral Evolution Project in partnership with RRUFF and mindat.
Mineral locality data provided by mindat.org

Ages for Marcasite at St Just, Cornwall, England, UK

The cyan highlights indicate which age entries were selected as the "best" for assigning the mineral an age of 399Ma - 45Ma at this locality

Age range from children

Excel ID	Max Age (Ma)	Min Age (Ma)	Dated Mineral	Minerals explicitely stated as having this age	Age applies to these Elements	Dated Locality ID	Dated Locality	Ref	Ref ID
Lucy_241	399	149				1296	Geevor Mine, Pendeen, St Just, Cornwall, England, UK	Darnley et al. (1965)	MM34_159
Lucy_237	45	45				1296	Geevor Mine, Pendeen, St Just, Cornwall, England, UK	Darnley et al. (1965)	MM34_159

Locality age

Excel ID	Max Age (Ma)	Min Age (Ma)	Dated Mineral	Dated Locality ID	Dated Locality	Ref	Ref ID
Lucy_017	270	266		1296	Geevor Mine, Pendeen, St Just, Cornwall, England, UK	Darbyshire et al. (1985)	JGSL142_1159
Lucy_055	285	255		1296	Geevor Mine, Pendeen, St Just, Cornwall, England, UK	Darbyshire et al. (1985)	JGSL142_1159
Lucy_062	283	275		34473	Lower Bostraze China Clay Pit, Tregeseal Valley, St Just, Cornwall, England, UK	Bray et al. (1983)	EG78_1064
Lucy_063	267	257		34473	Lower Bostraze China Clay Pit, Tregeseal Valley, St Just, Cornwall, England, UK	Bray et al. (1983)	EG78_1064
Lucy_069	274	266		1296	Geevor Mine, Pendeen, St Just, Cornwall, England, UK	LeBoutillier et al. (2003)	GSWE10_403
Lucy_074	232	230		18534	Pendeen, St Just, Cornwall, England, UK	Halliday (1980)	EG75_752
Lucy_081	270	100		1265	St Just, Cornwall, England, UK	Hawkes et al. (1978	US4_51
Lucy_136	267	257		34473	Lower Bostraze China Clay Pit, Tregeseal Valley, St Just, Cornwall, England, UK	Bray and Spooner (1983)	EG78_1064
Lucy_137	283	275		34473	Lower Bostraze China Clay Pit, Tregeseal Valley, St Just, Cornwall, England, UK	Bray and Spooner (1983)	EG78_1064
Lucy_207	288	288	Uraninite	1296	Geevor Mine, Pendeen, St Just, Cornwall, England, UK	Miller et al (1964)	GJ4_105
Lucy_232	228	218		1296	Geevor Mine, Pendeen, St Just, Cornwall, England, UK	Darnley et al. (1965)	MM34_159
Lucy_237	45	45		1296	Geevor Mine, Pendeen, St Just, Cornwall, England, UK	Darnley et al. (1965)	MM34_159
Lucy_238	377	137		1296	Geevor Mine, Pendeen, St Just, Cornwall, England, UK	Darnley et al. (1965)	MM34_159
Lucy_239	228	218		1296	Geevor Mine, Pendeen, St Just, Cornwall, England, UK	Darnley et al. (1965)	MM34_159
Lucy_240	241	211		1296	Geevor Mine, Pendeen, St Just, Cornwall, England, UK	Darnley et al. (1965)	MM34_159
Lucy_241	399	149		1296	Geevor Mine, Pendeen, St Just, Cornwall, England, UK	Darnley et al. (1965)	MM34_159
Lucy_255	61	55		1309	Wheal Owles, Botallack, St Just, Cornwall, England, UK	Darnley et al. (1965)	MM34_159
Lucy_256	297	283		1296	Geevor Mine, Pendeen, St Just, Cornwall, England, UK	Darnley et al. (1965)	MM34_159
Lucy_257	228	218		1296	Geevor Mine, Pendeen, St Just, Cornwall, England, UK	Darnley et al. (1965)	MM34_159
Lucy_258	45	45		1296	Geevor Mine, Pendeen, St Just, Cornwall, England, UK	Darnley et al. (1965)	MM34_159
Lucy_265	290	223		1296	Geevor Mine, Pendeen, St Just, Cornwall, England, UK	Darnley et al. (1965)	MM34_159
Lucy_274	220	220	Galena	1296	Geevor Mine, Pendeen, St Just, Cornwall, England, UK	Darnley et al. (1965)	MM34_159