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 Cryptomelane at Poland, Androscoggin Co., Maine, USA

The cyan highlights indicate which age entries were selected as the "best" for assigning the mineral an age of 383Ma - 272Ma 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
Alexandra-0155	383	272				3802	Berry-Havey Quarry (Havey Quarry; Berry Quarry), Poland, Androscoggin Co., Maine, USA	Wise et al. (2012)	CM50_1515

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
Alexandra-0155	383	272				3802	Berry-Havey Quarry (Havey Quarry; Berry Quarry), Poland, Androscoggin Co., Maine, USA	Wise et al. (2012)	CM50_1515