| 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. |
| Allophane | Analcime | Atacamite | Calcite | Chlorite | Clay | Clinozoisite | Copper | Corundum | Epidote |
| Feldspar | Gadolinite | Malachite | Natrolite | None | Not in a structural group | Prehnite | Pumpellyite | Quartz | Smectite-vermiculite |
| 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 |
|---|---|---|---|---|---|---|---|
| Albite (*) | Feldspar | Na(AlSi3O8) | 1080 | 1014 | 1 | 220592 | 8803 |
| Analcime (*) | Analcime | Na(AlSi2O6)·H2O | 1080 | 1014 | 3 | 220591,220592,220597 | 1627 |
| Calcite (*) | Calcite | Ca(CO3) | 1080 | 1014 | 4 | 220591,220592,220593,220597 | 27770 |
| Chalcocite (*) | None | Cu2S | 1080 | 1014 | 2 | 220590,220592 | 5707 |
| Chrysocolla (*) | Allophane | (Cu2-xAlx)H2-xSi2O5(OH)4·nH2O | 1080 | 1014 | 1 | 220592 | 3531 |
| Clinochlore (*) | Chlorite Clay | Mg5Al(AlSi3O10)(OH)8 | 1080 | 1014 | 1 | 220592 | 1756 |
| Copper (*) | Copper | Cu | 1080 | 1014 | 6 | 220590,220591,220592,220595,220596,220597 | 3846 |
| Cuprite (*) | Not in a structural group | Cu2O | 1080 | 1014 | 1 | 220590 | 2970 |
| Datolite (*) | Gadolinite | CaB(SiO4)(OH) | 1080 | 1014 | 3 | 220590,220591,220592 | 498 |
| Epidote (*) | Epidote Clinozoisite | Ca2(Al2Fe3+)[Si2O7][SiO4]O(OH) | 1080 | 1014 | 5 | 220590,220591,220592,220593,220597 | 8173 |
| Hematite (*) | Corundum | Fe2O3 | 1080 | 1014 | 1 | 220590 | 14640 |
| Kinoite (*) | None | Ca2Cu2Si3O10·2H2O | 1080 | 1014 | 2 | 220590,220596 | 17 |
| Laumontite (*) | Not in a structural group | CaAl2Si4O12·4H2O | 1080 | 1014 | 2 | 220591,220592 | 1271 |
| Malachite (*) | Malachite | Cu2(CO3)(OH)2 | 1080 | 1014 | 1 | 220590 | 12537 |
| Mesolite (*) | Natrolite | Na2Ca2(Si9Al6)O30·8H2O | 1080 | 1014 | 1 | 220597 | 425 |
| Microcline (*) | Feldspar | K(AlSi3O8) | 1080 | 1014 | 2 | 220592,220593 | 4924 |
| Natrolite (*) | Natrolite | Na2(Si3Al2)O10·2H2O | 1080 | 1014 | 1 | 220592 | 1236 |
| Paratacamite (*) | Atacamite | Cu3(Cu,Zn)Cl2(OH)6 | 1080 | 1014 | 1 | 220592 | 158 |
| Prehnite (*) | Prehnite | Ca2Al(Si3Al)O10(OH)2 | 1080 | 1014 | 3 | 220591,220592,220597 | 1898 |
| Pumpellyite-(Mg) (*) | Pumpellyite | Ca2MgAl2(Si2O7)(SiO4)(OH)2·H2O | 1080 | 1014 | 2 | 220590,220591 | 106 |
| Quartz (*) | Quartz | SiO2 | 1080 | 1014 | 5 | 220590,220591,220592,220596,220597 | 61156 |
| Saponite (*) | Clay Smectite-vermiculite | (Ca,Na)0.3(Mg,Fe)3(Si,Al)4O10(OH)2·4H2O | 1080 | 1014 | 2 | 220590,220591 | 301 |
| Silver (*) | Copper | Ag | 1080 | 1014 | 3 | 220590,220592,220596 | 5186 |
| Spertiniite (*) | None | Cu(OH)2 | 1080 | 1014 | 1 | 220592 | 17 |
| Tenorite (*) | None | CuO | 1080 | 1014 | 1 | 220592 | 1101 |
| Vaterite (*) | None | Ca(CO3) | 1080 | 1014 | 1 | 220592 | 37 |
| 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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