Kentbrooksite is a moderately rare mineral of the eudialyte group, with chemical formula (Na,REE)15(Ca,REE)6Mn3Zr3NbSi[(Si9O27)2(Si3O9)2O2]F2·2H2O. This extended formula shows the presence of cyclic silicate groups and dominance of Si at the M4 site, according to the nomenclature of the eudialyte group. The characteristic features of kentbrooksite, that make it different from eudialyte are: (1) dominancy of fluorine (the only currently known example among the whole group), (2) dominancy of manganese, and (3) dominancy of niobium. Trace hafnium and magnesium are also reported. Kentbrooksite is relatively common when compared to most other species of the group.
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| - Kentbrooksita (ca)
- Kentbrooksita (eu)
- Kentbrooksite (en)
- Kentbrooksite (it)
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| - La kentbrooksita és un mineral de la classe dels silicats, que pertany al . Rep el nom en honor de Charles Kent Brooks (1943-), professor de l'Institut Geològic de la Universitat de Copenhaguen. Va ser el líder de catorze expedicions geològiques a la zona de Kangerdlugssuaq, a l'est de Groenlàndia, i va recollir l'espècimen tipus. (ca)
- Kentbrooksita silikato motako minerala da eta eudialyte taldearen kidea da. (eu)
- Kentbrooksite is a moderately rare mineral of the eudialyte group, with chemical formula (Na,REE)15(Ca,REE)6Mn3Zr3NbSi[(Si9O27)2(Si3O9)2O2]F2·2H2O. This extended formula shows the presence of cyclic silicate groups and dominance of Si at the M4 site, according to the nomenclature of the eudialyte group. The characteristic features of kentbrooksite, that make it different from eudialyte are: (1) dominancy of fluorine (the only currently known example among the whole group), (2) dominancy of manganese, and (3) dominancy of niobium. Trace hafnium and magnesium are also reported. Kentbrooksite is relatively common when compared to most other species of the group. (en)
- La kentbrooksite è un minerale appartenente al gruppo dell'eudialite. (it)
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| - a = 14.24, c = 30.03 [Å] ; Z = 3 (en)
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| - La kentbrooksita és un mineral de la classe dels silicats, que pertany al . Rep el nom en honor de Charles Kent Brooks (1943-), professor de l'Institut Geològic de la Universitat de Copenhaguen. Va ser el líder de catorze expedicions geològiques a la zona de Kangerdlugssuaq, a l'est de Groenlàndia, i va recollir l'espècimen tipus. (ca)
- Kentbrooksita silikato motako minerala da eta eudialyte taldearen kidea da. (eu)
- Kentbrooksite is a moderately rare mineral of the eudialyte group, with chemical formula (Na,REE)15(Ca,REE)6Mn3Zr3NbSi[(Si9O27)2(Si3O9)2O2]F2·2H2O. This extended formula shows the presence of cyclic silicate groups and dominance of Si at the M4 site, according to the nomenclature of the eudialyte group. The characteristic features of kentbrooksite, that make it different from eudialyte are: (1) dominancy of fluorine (the only currently known example among the whole group), (2) dominancy of manganese, and (3) dominancy of niobium. Trace hafnium and magnesium are also reported. Kentbrooksite is relatively common when compared to most other species of the group. (en)
- La kentbrooksite è un minerale appartenente al gruppo dell'eudialite. (it)
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