| 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-0413 | 247 | 233 | 219632 | Scituate, Providence Co., Rhode Island, USA | Zartman et al. (1970) | GSAB81_3359 |