Crystal chemistry of the monazite structure

N Clavier, R Podor, N Dacheux - Journal of the European Ceramic Society, 2011 - Elsevier
The AXO4 monazite-type compounds form an extended family that is described in this
review in terms of field of stability versus composition. All the substitution possibilities on the …

Synthesis, structure, and properties of monazite, pretulite, and xenotime

LA Boatner - Reviews in mineralogy and geochemistry, 2002 - pubs.geoscienceworld.org
Orthophosphate compounds of the type A (PO4) include the minerals monazite [RE (PO4)
with RE= the light rare-earth ions, eg, La, Ce, Nd…], xenotime [Y (PO4), and also …

The chemical composition of REE-Y-Th-U-rich accessory minerals in peraluminous granites of the Erzgebirge-Fichtelgebirge region, Germany, Part I: The monazite …

HJ Foerster - American Mineralogist, 1998 - degruyter.com
Peraluminous granites of the Erzgebirge-Fichtelgebirge, Germany, are hosts of various
members of the monazite group of minerals that display an unprecedented compositional …

U-Th-Pb dating of phosphate minerals

TM Harrison, EJ Catlos… - Reviews in Mineralogy …, 2002 - pubs.geoscienceworld.org
The dominant occurrence of phosphate minerals in crystalline rocks is as accessory phases,
most notably apatite, monazite, and xenotime. Because these minerals tend, to varying …

Electron microprobe and LA-ICP-MS study of monazite hydrothermal alteration:: Implications for U-Th-Pb geochronology and nuclear ceramics

F Poitrasson, S Chenery, TJ Shepherd - Geochimica et Cosmochimica Acta, 2000 - Elsevier
This paper presents new data that quantify the response of magmatic monazite to three main
types of hydrothermal alteration, namely sericitization, chloritization, and greisenization. The …

Inorganic waste forms for efficient immobilization of radionuclides

BK Singh, MA Hafeez, H Kim, S Hong… - ACS ES&T …, 2021 - ACS Publications
The immobilization of long-lived radionuclide wastes generated from nuclear power plants
(NPPs) during NPP operation, fuel reprocessing, and decommissioning of nuclear reactors …

Phosphates as nuclear waste forms

RC Ewing, LM Wang - Reviews in mineralogy and …, 2002 - pubs.geoscienceworld.org
The disposal of radioactive “waste” generated by the nuclear fuel cycle is among the most
pressing and potentially costly environmental problems of the 21st century, a heritage from …

Monazite as a promising long-term radioactive waste matrix: Benefits of high-structural flexibility and chemical durability.

N Dacheux, N Clavier, R Podor - American Mineralogist, 2013 - degruyter.com
ABSTRACT Monazite (Ln3+PO4) and related solid solutions are a well-known source of rare
earth elements on earth. They may also accommodate large amounts of thorium and …

Electron microprobe analysis of REE in apatite, monazite and xenotime: protocols and pitfalls

JM Pyle, FS Spear, DA Wark - Reviews in Mineralogy …, 2002 - pubs.geoscienceworld.org
Phosphate accessory phases contain a wealth of petrologic and chronological information,
but each possesses particular properties that make accurate quantitative microanalysis …

Preparation and characterization of lanthanum–gadolinium monazites as ceramics for radioactive waste storage

O Terra, N Clavier, N Dacheux, R Podor - New journal of Chemistry, 2003 - pubs.rsc.org
Several La1− xGdxPO4 solid solutions were prepared in the monazite-or rhabdophane-type
structures for various x values using three methods of preparation (direct evaporation …