a6ce81ea-57b8-4f3c-ae71-6dce461cfcec English nonGeographicDataset Laura Williams British Geological Survey enquiries@bgs.ac.uk pointOfContact 2025-03-21 Met4Tech metadata register 0.1 Reference system not known Global Rare Earth In-Use Stocks in NdFeB Permanent Magnets (also known as Neodymium magnets) 2011-07 Resource publication date Global Rare Earth In-Use Stocks in NdFeB Permanent Magnets (also known as Neodymium magnets) This study looks back to 1983, when neodymium-iron-boron (NdFeB) permanent magnets were first manufactured and reaches to 2007 when the market of permanent magnets was well developed. And provide the first estimates of global in-use stocks for four rare earth elements—praseodymium (Pr), neodymium (Nd), terbium (Tb), and dysprosium (Dy)—in NdFeB permanent magnets. The data will be of value to all those interested in tracking the flows and stocks of rare earth elements in permanent magnets. Xiaoyue Du Yale xiaoyue.du@yale.edu pointOfContact unknown https://resources.bgs.ac.uk/images/minerals/m4tGraphic/mt13.png Dysprosium (Dy) industrial ecology material flow analysis (MFA) praseodymium (Pr) neodymium (Nd) terbium (Tb) MET4TECH dataCentre Economics BGS Geoscience Thesaurus 2002 BGS Thesaurus creation date 2022 BGS Thesaurus revision date no limitations to public access English utf8 geoscientificInformation 1983 2007 World Source document: Met4Tech_Metadata_Du and Graedel_2011.docx PDF https://doi.org/10.1111/j.1530-9290.2011.00362.x dataset Commission Regulation (EU) No 1089/2010 of 23 November 2010 implementing Directive 2007/2/EC of the European Parliament and of the Council as regards interoperability of spatial data sets and services 2010-12-08 This study conducted a material flow analysis of rare earths at the global level. The outcomes of the analysis were reviewed by independent peer reviewers and then published in the Journal of Industrial Ecology. Metadata is distributed with a CC BY-ND 4.0 (Attribution-NoDerivs 4.0 International) licence