Several niobo-tantalates : columbite, tantalite, microlite, tapiolite, have been discoverd for the first time in the Pyrénées. Their mineralogical and chemical characteristics are reported here. Their appearance in the phospholithic pegmatites determine niobium and tantale as constituent elements of the lithium district in the Pyrénées.Plusieurs niobo-tantalates : columbite, tantalite, microlite, tapiolite, sont signalés pour la première fois dans les Pyrénées. On donne leurs caractères minéralogiques et chimiques. Leur apparition dans les pegmatites phospholithinifères établit le niobium et le tantale comme éléments constitutifs du district à lithium des Pyrénées.Fontan François, Monchoux Pierre. Présence de niobo˗tantalates dans les pegma...
A lead rich microlite has been found in alluvial sands in the Kivu, Congo. This mineral is associat...
During a systematic mineralogical study of Elba pegmatites some Nb-Ta oxides were identified and cha...
The Kangxiwa–Dahongliutan pegmatite field in the Western Kunlun Orogen, China contains numerou...
The niobium-tantalum mineralization associated with granite pegmatites and alkali granitic rocks in ...
The niobium-tantalum mineralization associated with granite pegmatites and alkali granitic rocks in ...
Tantalum (Ta) and Niobium (Nb) are critical metals required in many applications related to the ener...
Niobium and tantalum are two rare metals that have similar physical and chemical properties and occu...
A comparison is made between Ta-Nb mineral assemblages of two Li-enriched but mineralogically distin...
A review of the current understanding of the chemistry and structural properties is provided for col...
A review of the current understanding of the chemistry and structural properties is provided for col...
Zircons bearing a high percentage of hafnium have been found in pegmatite in several places of the p...
Tantalum, an important metal for high-technology applications, is recovered from oxide minerals that...
The Separation Lake area is host to the most important rare-element pegmatites in Ontario, Canada. T...
A lead rich microlite has been found in alluvial sands in the Kivu, Congo. This mineral is associat...
Une tapiolite relativement riche en niobium (Nb : Ta = 0,55), presque exempte de manganèse, et des c...
A lead rich microlite has been found in alluvial sands in the Kivu, Congo. This mineral is associat...
During a systematic mineralogical study of Elba pegmatites some Nb-Ta oxides were identified and cha...
The Kangxiwa–Dahongliutan pegmatite field in the Western Kunlun Orogen, China contains numerou...
The niobium-tantalum mineralization associated with granite pegmatites and alkali granitic rocks in ...
The niobium-tantalum mineralization associated with granite pegmatites and alkali granitic rocks in ...
Tantalum (Ta) and Niobium (Nb) are critical metals required in many applications related to the ener...
Niobium and tantalum are two rare metals that have similar physical and chemical properties and occu...
A comparison is made between Ta-Nb mineral assemblages of two Li-enriched but mineralogically distin...
A review of the current understanding of the chemistry and structural properties is provided for col...
A review of the current understanding of the chemistry and structural properties is provided for col...
Zircons bearing a high percentage of hafnium have been found in pegmatite in several places of the p...
Tantalum, an important metal for high-technology applications, is recovered from oxide minerals that...
The Separation Lake area is host to the most important rare-element pegmatites in Ontario, Canada. T...
A lead rich microlite has been found in alluvial sands in the Kivu, Congo. This mineral is associat...
Une tapiolite relativement riche en niobium (Nb : Ta = 0,55), presque exempte de manganèse, et des c...
A lead rich microlite has been found in alluvial sands in the Kivu, Congo. This mineral is associat...
During a systematic mineralogical study of Elba pegmatites some Nb-Ta oxides were identified and cha...
The Kangxiwa–Dahongliutan pegmatite field in the Western Kunlun Orogen, China contains numerou...