Katophorite from
Djebel Guettara Mn deposit, Es Sebt, Azzaba District, Skikda Province, Algeria
| Locality type: | Deposit | |
| Classification | ||
|---|---|---|
| Species: | Katophorite | |
| Formula: | {Na}{CaNa}{Mg4Al}[(AlSi7)O22](OH)2 | |
| Comments: | Byramjee R.and Meindre M.(1956)publish the following normalized amphibole composition: (Na0.394K0.243)0.637(Na1.242Ca0.758)2.00(Mg4.139Mn0.311Fe0.068Al0.471Ti0.010)5.00(Si7.894Al0.106)O22((OH)2. Their data does not give a Fe3+/(Fe3+ + Fe2+) ratio, but charge balance calculations give sufficient Fe3+ for the amphibole to fall within the katophorite range as defined by Hawthorne et al. (2012) | |
| Confirmation | ||
| Validity: | Believed Valid | |
| Data | ||
| Mineral Data: | Click here to view Katophorite data | |
| Locality Data: | Click here to view Djebel Guettara Mn deposit, Es Sebt, Azzaba District, Skikda Province, Algeria | |
| Data Identifiers | ||
| Mindat Occurrence Record ID: | 907405 | |
| Long-form Identifier: | 1:3:907405:7 | |
| GUID (UUID V4): | 9d71050d-ea5d-4c5d-9e8c-79eac2d6b9cb | |
| References | ||
