Mineral Evolution DatabaseCreated and maintained by the Mineral Evolution Project in partnership with RRUFF and mindat.Mineral locality data provided by mindat.org |
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-0415 | 253 | 227 | 60895 | Leavitt Quarry, Leominster, Worcester Co., Massachusetts, USA | Zartman et al. (1970) | GSAB81_3359 |