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...

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Detalles Bibliográficos
Autores: Tauler, Esperança, Proenza, Joaquín A., Galí Medina, Salvador, Lewis , John F., Labrador Carrasco, Manuel, García Romero, Emilia, Súarez Barrios, Mercedes, Longo, Francisco, Bloise, Giovanni
Tipo de recurso: artículo
Fecha de publicación:2009
País:España
Institución:Universidad Complutense de Madrid (UCM)
Repositorio:Docta Complutense
Idioma:inglés
OAI Identifier:oai:docta.ucm.es:20.500.14352/50683
Acceso en línea:https://hdl.handle.net/20.500.14352/50683
Access Level:acceso abierto
Palabra clave:549.6(729.3)
Ni-sepiolite
Falcondoite
Garnierite
Crystal chemistry
Falcondo
Ni-laterites
Dominican Republic
Mineralogía (Geología)
2506.11 Mineralogía
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oai_identifier_str oai:docta.ucm.es:20.500.14352/50683
network_acronym_str ES
network_name_str España
repository_id_str
spelling Ni-sepiolite-falcondoite in garnierite mineralization from the Falcondo Ni-laterite deposit, Dominican RepublicTauler, EsperançaProenza, Joaquín A.Galí Medina, SalvadorLewis , John F.Labrador Carrasco, ManuelGarcía Romero, EmiliaSúarez Barrios, MercedesLongo, FranciscoBloise, Giovanni549.6(729.3)Ni-sepioliteFalcondoiteGarnieriteCrystal chemistryFalcondoNi-lateritesDominican RepublicMineralogía (Geología)2506.11 MineralogíaNew 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 SocietyUniversidad Complutense de Madrid20092009-01-0120092009-01-01journal articlehttp://purl.org/coar/resource_type/c_6501info:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/20.500.14352/50683reponame:Docta Complutenseinstname:Universidad Complutense de Madrid (UCM)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2info:eu-repo/semantics/openAccessoai:docta.ucm.es:20.500.14352/506832026-06-02T12:44:21Z
dc.title.none.fl_str_mv Ni-sepiolite-falcondoite in garnierite mineralization from the Falcondo Ni-laterite deposit, Dominican Republic
title Ni-sepiolite-falcondoite in garnierite mineralization from the Falcondo Ni-laterite deposit, Dominican Republic
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_short 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_sort Ni-sepiolite-falcondoite in garnierite mineralization from the Falcondo Ni-laterite deposit, Dominican Republic
dc.creator.none.fl_str_mv 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 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
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
dc.contributor.none.fl_str_mv Universidad Complutense de Madrid
dc.subject.none.fl_str_mv 549.6(729.3)
Ni-sepiolite
Falcondoite
Garnierite
Crystal chemistry
Falcondo
Ni-laterites
Dominican Republic
Mineralogía (Geología)
2506.11 Mineralogía
topic 549.6(729.3)
Ni-sepiolite
Falcondoite
Garnierite
Crystal chemistry
Falcondo
Ni-laterites
Dominican Republic
Mineralogía (Geología)
2506.11 Mineralogía
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.
publishDate 2009
dc.date.none.fl_str_mv 2009
2009-01-01
2009
2009-01-01
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/20.500.14352/50683
url https://hdl.handle.net/20.500.14352/50683
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Mineralogical Society
publisher.none.fl_str_mv Mineralogical Society
dc.source.none.fl_str_mv reponame:Docta Complutense
instname:Universidad Complutense de Madrid (UCM)
instname_str Universidad Complutense de Madrid (UCM)
reponame_str Docta Complutense
collection Docta Complutense
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1869411868783673344
score 15,300719

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