Ages for Chalcanthite at St Agnes, Cornwall, England, UK

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

• Locality age

• 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_070	289	279	Muscovite			191350	Wheal Bungay, St Agnes, Cornwall, England, UK	Halliday (1980)	EG75_752
  Lucy_132a	289	279				191350	Wheal Bungay, St Agnes, Cornwall, England, UK	Bray and Spooner (1983)	EG78_1064
  Lucy_132h	283	274.2				191350	Wheal Bungay, St Agnes, Cornwall, England, UK	Bray and Spooner (1983)	EG78_1064
  Lucy_132i	291.8	282.8				191350	Wheal Bungay, St Agnes, Cornwall, England, UK	Bray and Spooner (1983)	EG78_1064
  Lucy_132k	275.9	266.9				191350	Wheal Bungay, St Agnes, Cornwall, England, UK	Bray and Spooner (1983)	EG78_1064
  Lucy_138e	278.9	270.1				191350	Wheal Bungay, St Agnes, Cornwall, England, UK	Bray and Spooner (1983)	EG78_1064
  Lucy_138f	270.6	262				191350	Wheal Bungay, St Agnes, Cornwall, England, UK	Bray and Spooner (1983)	EG78_1064
  Lucy_138g	276.1	267.5				191350	Wheal Bungay, St Agnes, Cornwall, England, UK	Bray and Spooner (1983)	EG78_1064
  Lucy_138h	271.7	263.1				191350	Wheal Bungay, St Agnes, Cornwall, England, UK	Bray and Spooner (1983)	EG78_1064
  Lucy_138i	279.1	270.3				191350	Wheal Bungay, St Agnes, Cornwall, England, UK	Bray and Spooner (1983)	EG78_1064
  Lucy_138j	271.4	270.4				191350	Wheal Bungay, St Agnes, Cornwall, England, UK	Bray and Spooner (1983)	EG78_1064
  Lucy_144g	276.3	272.1				191350	Wheal Bungay, St Agnes, Cornwall, England, UK	Bray and Spooner (1983)	EG78_1064
  Lucy_224	283	273	Muscovite			191350	Wheal Bungay, St Agnes, Cornwall, England, UK	Miller et al (1964)	GJ4_105