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| 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. |
| Bixbyite | Braunite | Brucite | Coronadite | None | Ramsdellite | Rocksalt | Rutile | Spinel |
| Bixbyite (*) | Braunite (*) | Coronadite (*) | Cryptomelane (*) | Jacobsite (*) |
| Lithiophorite (*) | Manganosite (*) | Pyrochroite (*) | Pyrolusite (*) | Ramsdellite (*) |
| Woodruffite (*) |
| 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 |
|---|---|---|---|---|---|---|---|
| Bixbyite (*) | Bixbyite | Mn3+2O3 | 53 | 9 | 0 | 104 | |
| Braunite (*) | Braunite | Mn2+Mn3+6O8(SiO4) | 53 | 9 | 0 | 483 | |
| Coronadite (*) | Coronadite | Pb(Mn4+6Mn3+2)O16 | 53 | 9 | 0 | 227 | |
| Cryptomelane (*) | Coronadite | K(Mn4+7Mn3+)O16 | 53 | 9 | 0 | 599 | |
| Jacobsite (*) | Spinel | Mn2+Fe3+2O4 | 53 | 9 | 0 | 172 | |
| Lithiophorite (*) | None | (Al,Li)(Mn4+,Mn3+)O2(OH)2 | 53 | 9 | 0 | 210 | |
| Manganosite (*) | Rocksalt | MnO | 53 | 9 | 0 | 73 | |
| Pyrochroite (*) | Brucite | Mn2+(OH)2 | 53 | 9 | 0 | 56 | |
| Pyrolusite (*) | Rutile | MnO2 | 53 | 9 | 0 | 3106 | |
| Ramsdellite (*) | Ramsdellite | MnO2 | 53 | 9 | 0 | 88 | |
| Woodruffite (*) | None | Zn2(Mn4+,Mn3+)5O10·4H2O | 53 | 9 | 0 | 25 |
| 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Scott-G44_299-0001 | 53 | 50 | 53-50 | 40Ar-39Ar | age of weathering | cryptomelane | Yes | Cryptomelane | Mn | 279945 | Sandur, Bellary-Hospet Iron Belt, Bellary District, Karnataka, India | Sandur Mn-ore deposit | Beauvais et al. (2016) | 10.1130/G37303.1 | G44_299 | Age for highland Sandur deposit, (bauxitic) weathering | |||||
| Scott-G44_299-0002 | 36 | 26 | 36-26 | 40Ar-39Ar | age of weathering | cryptomelane | Yes | Cryptomelane | Mn | 279945 | Sandur, Bellary-Hospet Iron Belt, Bellary District, Karnataka, India | Sandur Mn-ore deposit | Beauvais et al. (2016) | 10.1130/G37303.1 | G44_299 | Age for highland Sandur deposit, geochemical reworking of bauxites | |||||
| Scott-G44_299-0003 | 47 | 45 | 47-45 | 40Ar-39Ar | age of weathering | cryptomelane | Yes | Cryptomelane | Mn | 279945 | Sandur, Bellary-Hospet Iron Belt, Bellary District, Karnataka, India | Sandur Mn-ore deposit | Beauvais et al. (2016) | 10.1130/G37303.1 | G44_299 | Age for lowland Sandur deposit, early lateritic weathering | |||||
| Scott-G44_299-0004 | 24 | 19 | 24-19 | 40Ar-39Ar | age of weathering | cryptomelane | Yes | Cryptomelane | Mn | 279945 | Sandur, Bellary-Hospet Iron Belt, Bellary District, Karnataka, India | Sandur Mn-ore deposit | Beauvais et al. (2016) | 10.1130/G37303.1 | G44_299 | Age for lowland Sandur deposit, weathering and formation of the pediment’s capping ferricrete | |||||
| Scott-G44_299-0005 | 9 | 9 | 9 | 40Ar-39Ar | age of weathering | cryptomelane | Yes | Cryptomelane | Mn | 279945 | Sandur, Bellary-Hospet Iron Belt, Bellary District, Karnataka, India | Sandur Mn-ore deposit | Beauvais et al. (2016) | 10.1130/G37303.1 | G44_299 | Age for lowland Sandur deposit, discrete weathering pulse, which left little imprint in the weathering profile |
| Sample | Source Locality | Reference URL |
|---|---|---|
All locality data graciously provided by mindat.org
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