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 Muscovite at Plummer Mountain, Glacier Peak District, Snohomish Co., Washington, USA

The cyan highlights indicate which age entries were selected as the "best" for assigning the mineral an age of 21Ma - 21Ma 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
PorphCu-00054	21	21		Arsenopyrite, Bismuth, Chalcocite, Chalcopyrite, Copper, Covellite, Cuprite, Enargite, Epidote, Galena, Gold, Marcasite, Molybdenite, Pyrite, Pyrrhotite, Realgar, Scheelite, Siderite, Sphalerite	Cu	17816	Glacier Peak Mine (Miners Ridge Mine; Calumet Mine), Plummer Mountain, Glacier Peak District, Snohomish Co., Washington, USA	Singer et al. (2008)	USGSOFR2008_1155

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
PorphCu-00054	21	21		Arsenopyrite, Bismuth, Chalcocite, Chalcopyrite, Copper, Covellite, Cuprite, Enargite, Epidote, Galena, Gold, Marcasite, Molybdenite, Pyrite, Pyrrhotite, Realgar, Scheelite, Siderite, Sphalerite	Cu	17816	Glacier Peak Mine (Miners Ridge Mine; Calumet Mine), Plummer Mountain, Glacier Peak District, Snohomish Co., Washington, USA	Singer et al. (2008)	USGSOFR2008_1155