Ages for Chalcocite at Heddleston (Anaconda Mine - 0300490146; Mike Horse Mine - 0300490362; Carbonate Mine - 0300490040; Heddleston Deposit; Paymaster Mine - 0300490242; Midnight Mine - 0300490284; Heddleston Group), Seven-Up Pete Mining District, Lewis And Clark Co., Montana, USA

The cyan highlights indicate which age entries were selected as the "best" for assigning the mineral an age of 46Ma - 46Ma at this locality

• Specified 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
  PorphCu-00202	46	46		Bornite, Chalcocite, Chalcopyrite, Marcasite, Molybdenite, Pyrite, Pyrrhotite, Rhodochrosite, Sphalerite	Cu	162015	Heddleston (Anaconda Mine - 0300490146; Mike Horse Mine - 0300490362; Carbonate Mine - 0300490040; Heddleston Deposit; Paymaster Mine - 0300490242; Midnight Mine - 0300490284; Heddleston Group), Seven-Up Pete Mining District, Lewis And Clark Co., Montana, USA	Singer et al. (2008)	USGSOFR2008_1155

• Locality age (remote)

• 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
  AJES44_373-00012	39	37			Au	163219	McDonald Meadows Occurrence, Seven-Up Pete Mining District, Lewis And Clark Co., Montana, USA	Sillitoe (1997)	AJES44_373