| 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. |
| Acetate | Amphibole | Analcime | Anthonyite | Atacamite | Baryte | Calcite | Clay | Clinozoisite | Connellite |
| Copper | Epidote | Gadolinite | Malachite | Monazite | None | Not in a structural group | Prehnite | Quartz | Scheelite |
| 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 |
|---|---|---|---|---|---|---|---|
| Analcime (*) | Analcime | Na(AlSi2O6)·H2O | 1080 | 1014 | 3 | 220525,220526,220531 | 1627 |
| Anthonyite (*) | Anthonyite | Cu(OH)2·3H2O | 1080 | 1014 | 1 | 220525 | 6 |
| Atacamite (*) | Atacamite | Cu2Cl(OH)3 | 1080 | 1014 | 3 | 220525,220526,220528 | 544 |
| Baryte (*) | Baryte | Ba(SO4) | 1080 | 1014 | 3 | 220525,220526,220528 | 11547 |
| Buttgenbachite (*) | Connellite | Cu36(NO3)2Cl8(OH)62·nH2O | 1080 | 1014 | 3 | 220525,220526,220528 | 13 |
| Calcite (*) | Calcite | Ca(CO3) | 1080 | 1014 | 4 | 220525,220526,220529,220531 | 27770 |
| Calumetite (*) | Anthonyite | CaCu4(OH)8Cl2·3.5H2O | 1080 | 1014 | 3 | 220525,220526,220528 | 11 |
| Centennialite (*) | Atacamite | CaCu3Cl2(OH)6·nH2O (n ~ 0.7) | 1080 | 1014 | 1 | 220525 | 1 |
| Chalcocite (*) | None | Cu2S | 1080 | 1014 | 1 | 220525 | 5707 |
| Chalconatronite (*) | None | Na2Cu(CO3)2·3H2O | 1080 | 1014 | 2 | 220525,220526 | 23 |
| Copper (*) | Copper | Cu | 1080 | 1014 | 5 | 220525,220526,220528,220529,220531 | 3846 |
| Cuprite (*) | Not in a structural group | Cu2O | 1080 | 1014 | 4 | 220525,220526,220528,220531 | 2970 |
| Datolite (*) | Gadolinite | CaB(SiO4)(OH) | 1080 | 1014 | 4 | 220525,220526,220529,220531 | 498 |
| Epidote (*) | Epidote Clinozoisite | Ca2(Al2Fe3+)[Si2O7][SiO4]O(OH) | 1080 | 1014 | 5 | 220525,220526,220528,220529,220531 | 8173 |
| Hoganite (*) | Acetate | Cu(CH3COO)2·H2O | 0 | 0 | 1 | 220525 | 4 |
| Kinoite (*) | None | Ca2Cu2Si3O10·2H2O | 1080 | 1014 | 1 | 220525 | 17 |
| Laumontite (*) | Not in a structural group | CaAl2Si4O12·4H2O | 1080 | 1014 | 2 | 220525,220526 | 1271 |
| Malachite (*) | Malachite | Cu2(CO3)(OH)2 | 1080 | 1014 | 3 | 220525,220526,220528 | 12537 |
| Monazite-(Ce) (*) | Monazite | Ce(PO4) | 1080 | 1014 | 1 | 220525 | 945 |
| Paratacamite (*) | Atacamite | Cu3(Cu,Zn)Cl2(OH)6 | 1080 | 1014 | 3 | 220525,220526,220528 | 158 |
| Powellite (*) | Scheelite | Ca(MoO4) | 1080 | 1014 | 1 | 220527 | 494 |
| Prehnite (*) | Prehnite | Ca2Al(Si3Al)O10(OH)2 | 1080 | 1014 | 2 | 220526,220531 | 1898 |
| Quartz (*) | Quartz | SiO2 | 1080 | 1014 | 4 | 220525,220526,220529,220531 | 61156 |
| Saponite (*) | Clay Smectite-vermiculite | (Ca,Na)0.3(Mg,Fe)3(Si,Al)4O10(OH)2·4H2O | 1080 | 1014 | 1 | 220531 | 301 |
| Silver (*) | Copper | Ag | 1080 | 1014 | 1 | 220531 | 5186 |
| Tremolite (*) | Amphibole | Ca2(Mg5.0-4.5Fe2+0.0-0.5)Si8O22(OH)2 | 1080 | 1014 | 1 | 220525 | 2562 |
| 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 |
| Sample | Source Locality | Reference URL |
|---|---|---|
| R141189 | Centennial Mine, Centennial, Houghton Co., Michigan, USA | https://rruff.info/R141189 |
All locality data graciously provided by mindat.org
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