Important Update News
The RRUFF Project has been migrated to RRUFF.net. Please update your bookmarks immediately, if you have not done so.
The data on this website is already three years out of date, and the entire website will be taken offline before the end of the year.
We are grateful to NASA for the funding of this effort.
| 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. |
| Calcite | Clay | Kaolinite | Mica | None | Quartz | Smectite-vermiculite |
| Gibbsite (*) | Kaolinite (*) | Montmorillonite (*) | Muscovite (*) | Quartz (*) |
| Siderite (*) |
| 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 |
|---|---|---|---|---|---|---|---|
| Gibbsite (*) | None | Al(OH)3 | 1 | 224176 | 504 | ||
| Kaolinite (*) | Clay Kaolinite | Al2Si2O5(OH)4 | 2 | 224170,224176 | 5591 | ||
| Montmorillonite (*) | Clay Smectite-vermiculite | (Na,Ca)0.3(Al,Mg)2Si4O10(OH)2·nH2O | 1 | 224170 | 1508 | ||
| Muscovite (*) | Mica Clay | KAl2(Si3Al)O10(OH)2 | 1 | 224170 | 17380 | ||
| Quartz (*) | Quartz | SiO2 | 1 | 224170 | 61156 | ||
| Siderite (*) | Calcite | Fe(CO3) | 0 | 6417 |
| Sample | Source Locality | Reference URL |
|---|---|---|
All locality data graciously provided by mindat.org
All age data...
Other copyright data...