| A | This mineral is Anthropogenic. |
| G | This mineral is directly dated. |
| B | This mineral is reported as having this age. |
| Y | This mineral is using an age reported as an element mineralization period. |
| O | This mineral is using an age calculated from all data at the locality. |
| R | The age displayed for this mineral originates from a different, non-child locality. |
| P | The age displayed for this mineral is the range of ages for this mineral at all of this locality's children. |
| This mineral's age has not yet been recorded. |
| Mineral name | Structural Groups | IMA Formula | Max Age (Ma) | Min Age (Ma) | # of Sublocalities containing mineral | LOCALITY IDs, not mindat ids | # of localities containing mineral |
|---|---|---|---|---|---|---|---|
| Analcime (*) | Analcime | Na(AlSi2O6)·H2O | 1080 | 1014 | 0 | 1627 | |
| Arsenopyrite (*) | Arsenopyrite | FeAsS | 1080 | 1014 | 1 | 220671 | 9052 |
| Atacamite (*) | Atacamite | Cu2Cl(OH)3 | 1080 | 1014 | 0 | 544 | |
| Calcite (*) | Calcite | Ca(CO3) | 1080 | 1014 | 1 | 220671 | 27770 |
| Chalcocite (*) | None | Cu2S | 1080 | 1014 | 0 | 5707 | |
| Chrysocolla (*) | Allophane | (Cu2-xAlx)H2-xSi2O5(OH)4·nH2O | 1080 | 1014 | 1 | 220671 | 3531 |
| Cobaltite (*) | Cobaltite | CoAsS | 1080 | 1014 | 1 | 220671 | 966 |
| Copper (*) | Copper | Cu | 1080 | 1014 | 1 | 220671 | 3846 |
| Cuprite (*) | Not in a structural group | Cu2O | 1080 | 1014 | 1 | 220671 | 2970 |
| Datolite (*) | Gadolinite | CaB(SiO4)(OH) | 1080 | 1014 | 1 | 220671 | 498 |
| Epidote (*) | Epidote Clinozoisite | Ca2(Al2Fe3+)[Si2O7][SiO4]O(OH) | 1080 | 1014 | 1 | 220671 | 8173 |
| Hematite (*) | Corundum | Fe2O3 | 1080 | 1014 | 1 | 220671 | 14640 |
| Kaolinite (*) | Clay Kaolinite | Al2Si2O5(OH)4 | 1080 | 1014 | 0 | 5591 | |
| Malachite (*) | Malachite | Cu2(CO3)(OH)2 | 1080 | 1014 | 1 | 220671 | 12537 |
| Manganite (*) | Rutile | Mn3+O(OH) | 1080 | 1014 | 0 | 770 | |
| Microcline (*) | Feldspar | K(AlSi3O8) | 1080 | 1014 | 0 | 4924 | |
| Muscovite (*) | Mica Clay | KAl2(Si3Al)O10(OH)2 | 1080 | 1014 | 0 | 17380 | |
| Prehnite (*) | Prehnite | Ca2Al(Si3Al)O10(OH)2 | 1080 | 1014 | 1 | 220671 | 1898 |
| Quartz (*) | Quartz | SiO2 | 1080 | 1014 | 1 | 220671 | 61156 |
| Safflorite (*) | Löllingite | CoAs2 | 1080 | 1014 | 1 | 220671 | 317 |
| Silver (*) | Copper | Ag | 1080 | 1014 | 1 | 220671 | 5186 |
| Skutterudite (*) | Skutterudite Perovskite | CoAs3 | 1080 | 1014 | 1 | 220671 | 531 |
| Tenorite (*) | None | CuO | 1080 | 1014 | 1 | 220671 | 1101 |
| Excel ID | Max Age (Ma) | Min Age (Ma) | Age as listed in reference | Dating Method | Age Interpret | Prioritized? | Sample Source | Sample Num | Run Num | Age from other Locality | Dated Mineral | Minerals explicitely stated as having this age | Age applies to these Elements | MinDat Locality ID | Dated Locality (Max Age) | Location as listed in reference | Reference | Reference DOI | Reference ID | Age Notes | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Kristen002199 | 1080 | 1014 | 1047±33 | Rb-Sr | Yes | 11425 | Keweenaw Peninsula, Michigan, USA | Keweenaw Peninsula | Bornhorst et al. (1988) | 10.2113/gsecongeo.83.3.619 | EG83_619 | ||||||||||
| Kristen002200 | 1080 | 1040 | 1060±20 | Yes | 11425 | Keweenaw Peninsula, Michigan, USA | Keweenaw Peninsula | Bornhorst et al. (1988) | 10.2113/gsecongeo.83.3.619 | EG83_619 |
All locality data graciously provided by mindat.org
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