Ni-sepiolite-falcondoite in garnierite mineralization from the Falcondo Ni-laterite deposit, Dominican Republic
New chemical and structural data on sepiolite-falcondoite in garnierite veins from the Falcondo Ni-laterite deposits, central Dominican Republic, are reported. Samples of Ni-sepiolitefalcondoite vary in colour from whitish green to green depending on the NiO content (wt.%) and the amount of silica p...
| Authors: | ; ; ; ; ; ; ; ; |
|---|---|
| Format: | Article |
| Publication date: | 2009 |
| Country: | España |
| Institution: | Universidad Complutense de Madrid (UCM) |
| Repository: | Docta Complutense |
| Language: | English |
| OAI Identifier: | oai:docta.ucm.es:20.500.14352/50683 |
| Online Access: | https://hdl.handle.net/20.500.14352/50683 |
| Access Level: | Open access |
| Keyword: | 549.6(729.3) Ni-sepiolite Falcondoite Garnierite Crystal chemistry Falcondo Ni-laterites Dominican Republic Mineralogía (Geología) 2506.11 Mineralogía |
| _version_ | 1878735604457406464 |
|---|---|
| author | Tauler, Esperança |
| author2 | Proenza, Joaquín A. Galí Medina, Salvador Lewis , John F. Labrador Carrasco, Manuel García Romero, Emilia Súarez Barrios, Mercedes Longo, Francisco Bloise, Giovanni |
| author2_role | author author author author author author author author |
| author_browse | Bloise, Giovanni Galí Medina, Salvador García Romero, Emilia Labrador Carrasco, Manuel Lewis , John F. Longo, Francisco Proenza, Joaquín A. Súarez Barrios, Mercedes Tauler, Esperança |
| author_facet | Tauler, Esperança Proenza, Joaquín A. Galí Medina, Salvador Lewis , John F. Labrador Carrasco, Manuel García Romero, Emilia Súarez Barrios, Mercedes Longo, Francisco Bloise, Giovanni |
| author_role | author |
| collection | Docta Complutense |
| description | New chemical and structural data on sepiolite-falcondoite in garnierite veins from the Falcondo Ni-laterite deposits, central Dominican Republic, are reported. Samples of Ni-sepiolitefalcondoite vary in colour from whitish green to green depending on the NiO content (wt.%) and the amount of silica present. The texture is normally schistose and friable but samples with considerable quartz and/or amorphous silica are compact and hard. Back-scattered electron images indicate that the samples are composed of at least three generations of Ni-sepiolite-falcondoite. The extreme refined cell parameters for Ni-sepiolite-falcondoite vary from 13.400(2), 27.006(4), 5.273(1) A˚ to 13.340(3), 27.001(6), 5.267(1) A˚ (space group Pncn). As the Ni content increases there is a small reduction in the a parameter. Chemical compositions determined by electron probe microanalysis cover a large interval of the Ni-sepiolite-falcondoite solid solution (Fal3 and Fal77). Individual samples show a considerable range in composition with the widest range determined in one sample from 4.63 to 22.40 wt.% NiO. |
| eu_rights_str_mv | openAccess |
| format | article |
| id | ES_80098a86a95892917792b879c3d86d52 |
| institution | Universidad Complutense de Madrid (UCM) |
| instname_str | Universidad Complutense de Madrid (UCM) |
| language | eng |
| network_acronym_str | ES |
| network_name_str | España |
| oai_identifier_str | oai:docta.ucm.es:20.500.14352/50683 |
| publishDate | 2009 |
| publishDateSort | 2009 |
| publisher | Mineralogical Society |
| publisherStr | Mineralogical Society |
| reponame_str | Docta Complutense |
| spelling | Ni-sepiolite-falcondoite in garnierite mineralization from the Falcondo Ni-laterite deposit, Dominican Republic Tauler, Esperança Proenza, Joaquín A. Galí Medina, Salvador Lewis , John F. Labrador Carrasco, Manuel García Romero, Emilia Súarez Barrios, Mercedes Longo, Francisco Bloise, Giovanni 549.6(729.3) Ni-sepiolite Falcondoite Garnierite Crystal chemistry Falcondo Ni-laterites Dominican Republic Mineralogía (Geología) 2506.11 Mineralogía New chemical and structural data on sepiolite-falcondoite in garnierite veins from the Falcondo Ni-laterite deposits, central Dominican Republic, are reported. Samples of Ni-sepiolitefalcondoite vary in colour from whitish green to green depending on the NiO content (wt.%) and the amount of silica present. The texture is normally schistose and friable but samples with considerable quartz and/or amorphous silica are compact and hard. Back-scattered electron images indicate that the samples are composed of at least three generations of Ni-sepiolite-falcondoite. The extreme refined cell parameters for Ni-sepiolite-falcondoite vary from 13.400(2), 27.006(4), 5.273(1) A˚ to 13.340(3), 27.001(6), 5.267(1) A˚ (space group Pncn). As the Ni content increases there is a small reduction in the a parameter. Chemical compositions determined by electron probe microanalysis cover a large interval of the Ni-sepiolite-falcondoite solid solution (Fal3 and Fal77). Individual samples show a considerable range in composition with the widest range determined in one sample from 4.63 to 22.40 wt.% NiO. Mineralogical Society https://hdl.handle.net/20.500.14352/50683 |
| spellingShingle | Ni-sepiolite-falcondoite in garnierite mineralization from the Falcondo Ni-laterite deposit, Dominican Republic Tauler, Esperança 549.6(729.3) Ni-sepiolite Falcondoite Garnierite Crystal chemistry Falcondo Ni-laterites Dominican Republic Mineralogía (Geología) 2506.11 Mineralogía |
| title | Ni-sepiolite-falcondoite in garnierite mineralization from the Falcondo Ni-laterite deposit, Dominican Republic |
| title_full | Ni-sepiolite-falcondoite in garnierite mineralization from the Falcondo Ni-laterite deposit, Dominican Republic |
| title_fullStr | Ni-sepiolite-falcondoite in garnierite mineralization from the Falcondo Ni-laterite deposit, Dominican Republic |
| title_full_unstemmed | Ni-sepiolite-falcondoite in garnierite mineralization from the Falcondo Ni-laterite deposit, Dominican Republic |
| title_short | Ni-sepiolite-falcondoite in garnierite mineralization from the Falcondo Ni-laterite deposit, Dominican Republic |
| title_sort | Ni-sepiolite-falcondoite in garnierite mineralization from the Falcondo Ni-laterite deposit, Dominican Republic |
| topic | 549.6(729.3) Ni-sepiolite Falcondoite Garnierite Crystal chemistry Falcondo Ni-laterites Dominican Republic Mineralogía (Geología) 2506.11 Mineralogía |
| topic_facet | 549.6(729.3) Ni-sepiolite Falcondoite Garnierite Crystal chemistry Falcondo Ni-laterites Dominican Republic Mineralogía (Geología) 2506.11 Mineralogía |
| url | https://hdl.handle.net/20.500.14352/50683 |