{"schema":"https://ver.cy/schemas/card/1.0.0","id":"vr.tr.dysprosium","code":"thing-q1843","url":"https://ver.cy/models/thing/q1843/","name":"dysprosium","alternateNames":["dysprosium-156","dysprosium-158","dysprosium-160","dysprosium-161","dysprosium-162","dysprosium-163","dysprosium-164","dysprosium-138","dysprosium-139","dysprosium-140","dysprosium-140m","dysprosium-141"],"kind":"thing","status":"published","version":"0.2.0-wave.3","language":"en","classifiers":{"family":"Thing Registry","category":"Physical world and living systems","entryKind":"thing","plane":"PHY","domain":["PHY.MAT"],"industry":[],"navPath":"","tags":[],"facets":{}},"whatItIs":"A chemical element with symbol Dy and atomic number 66, a silvery lanthanide with one of the highest magnetic strengths of the elements, obtained from monazite, bastnasite and ion-adsorption clays, used above all as an additive in neodymium magnets to preserve magnetism at high temperature in motors and wind turbines, and in control rods, dosimeters, lasers and data storage, with seven stable isotopes from dysprosium-156 to dysprosium-164; dysprosium is a critical material with concentrated supply.","purpose":"Let an agent identify dysprosium and its properties, relay isotopes, production, uses and supply issues from reference sources, and distinguish it from neighbouring lanthanides.","scope":{"in":[],"out":[],"boundaries":[]},"distinguishingFeatures":["High magnetic moment","Magnet additive","Neutron absorption","Critical material status"],"structure":{"bundles":[{"id":"identify","name":"Identify","description":"What dysprosium is.","layers":[{"id":"properties","name":"Properties","description":"Properties.","findings":[{"id":"properties-finding","name":"Properties","description":"Properties.","questions":[{"text":"What are the physical, chemical and magnetic properties of dysprosium?","kind":"definition"},{"text":"Is the question about dysprosium or a neighbouring lanthanide?","kind":"boundary"}]}]},{"id":"isotopes","name":"Isotopes","description":"Isotopes.","findings":[{"id":"isotopes-finding","name":"Isotopes","description":"Isotopes.","questions":[{"text":"Which isotopes exist, and how are they used?","kind":"definition"},{"text":"Which entry fits the specific isotope?","kind":"action"}]}]}]},{"id":"source","name":"Source","description":"Supply.","layers":[{"id":"production","name":"Production","description":"Mining and separation.","findings":[{"id":"production-finding","name":"Production","description":"Production.","questions":[{"text":"Where is dysprosium mined and separated, and who produces it, with sources?","kind":"provenance"},{"text":"Which sources are cited?","kind":"provenance"}]}]},{"id":"policy","name":"Policy","description":"Critical material policy.","findings":[{"id":"policy-finding","name":"Policy","description":"Policy.","questions":[{"text":"Why is dysprosium listed as critical, and what policies address supply, with positions attributed?","kind":"provenance"},{"text":"Is the presentation neutral?","kind":"boundary"}]}]}]},{"id":"use","name":"Use","description":"Uses.","layers":[{"id":"magnets","name":"Magnets","description":"Magnets.","findings":[{"id":"magnets-finding","name":"Magnets","description":"Magnets.","questions":[{"text":"How does dysprosium improve neodymium magnets, and how is its use being reduced?","kind":"provenance"},{"text":"Which entry fits neodymium magnet?","kind":"action"}]}]},{"id":"other","name":"Other","description":"Other uses.","findings":[{"id":"other-finding","name":"Other","description":"Other.","questions":[{"text":"How is dysprosium used in control rods, dosimeters, lasers and data storage?","kind":"provenance"},{"text":"Which references are standard?","kind":"provenance"}]}]}]},{"id":"context","name":"Context","description":"History and recycling.","layers":[{"id":"discovery","name":"Discovery","description":"Discovery.","findings":[{"id":"discovery-finding","name":"Discovery","description":"Discovery.","questions":[{"text":"How was dysprosium discovered by Lecoq de Boisbaudran in 1886, and why was it named hard to get at?","kind":"provenance"},{"text":"Which entry fits the history of the rare earths?","kind":"action"}]}]},{"id":"recycling","name":"Recycling","description":"Recycling.","findings":[{"id":"recycling-finding","name":"Recycling","description":"Recycling.","questions":[{"text":"How is dysprosium recovered from magnets, and what progress exists?","kind":"provenance"},{"text":"Which entry fits rare earth recycling?","kind":"action"}]}]}]}]},"agentConduct":{"may":["Explain dysprosium's properties and its role in permanent magnets.","Report production and supply figures with source and year."],"mustNot":["Misstate the origin of dysprosium to hide sourcing from conflict or polluting operations.","Advise handling dysprosium powders without proper safety measures.","Discard magnets containing it into general waste where recycling is required.","Present supply-risk forecasts as certain."],"requiresHuman":["Approving procurement from sources flagged for environmental or labour abuse."]},"ethics":{"considerations":["Rare earth mining and processing have polluted land and water near mines.","Clean energy depends on it, so sourcing affects both climate goals and local communities."],"affectedParties":["Communities near mines","Mine and processing workers","Users of clean energy technology"]},"owners":{"steward":"The holder of each stock; mining rights are granted by the state where it is mined.","roles":[],"masterSystems":[]},"relations":[{"target":"Q105789","type":"parent","note":"registry parent class"},{"target":"Q19569","type":"parent","note":"registry parent class"},{"target":"lanthanide","type":"related","note":"in registry terms"},{"target":"heavy metal","type":"related","note":"in registry terms"},{"target":"neodymium magnet","type":"related","note":"for temperature resistance"},{"target":"terbium","type":"related","note":"element 65"}],"interaction":{"identity":{"applicability":"required","items":["Vercy registry: vr.tr.dysprosium","Wikidata: Q1843 (https://www.wikidata.org/wiki/Q1843)","symbol: Dy","CAS: 7429-91-6"]},"properties":{"applicability":"required","items":["atomic number: 66 Z","standard atomic weight: 162.5 u","melting point: 1412 degrees C","stable isotopes: 7 count - Dy-156, 158, 160, 161, 162, 163, 164"]},"recognition":{"applicability":"required","items":["Element 66, symbol Dy","Lanthanide additive for heat-resistant magnets","Terbium and holmium are the neighbouring lanthanides","A soft silvery metal that tarnishes slowly in air."]},"capabilities":{"applicability":"required","items":["relay properties and isotopes","explain production and uses","relay supply and policy issues","distinguish from other lanthanides"]},"hazards":{"applicability":"required","items":["Supply concentration and price spikes","Environmental impact of ion-adsorption clay mining","Confusing with neighbouring lanthanides"]},"interfaces":{"applicability":"required","items":["Critical raw material listings","Rare earth export controls","Chemical safety data sheets"]},"context":{"applicability":"required","items":["High-temperature magnets, reactor control and specialised uses.","dysprosium metal and alloys","dysprosium compounds such as the oxide","stable isotopes from dysprosium-156 to dysprosium-164","dysprosium in magnets, control rods and dosimeters"]}},"sources":[{"title":"Wikidata item Q1843: dysprosium","url":"https://www.wikidata.org/wiki/Q1843","note":"identity and sense of the item"},{"title":"Wikipedia: Dysprosium","url":"https://en.wikipedia.org/wiki/Dysprosium","note":"general description of the item"}],"openQuestions":["Should the magnet application be the primary linked entry?","How should supply data be linked?","The registry entry has merged aliases naming isotopes; should they be split off?"],"resources":{"spec":"/models/things/publications/thing-q1843/spec.json"},"provenance":{"origin":"thing registry research (pass 2)","builtFrom":["models/things/publications/thing-q1843/spec.json"],"providers":["Claude"],"researchStatus":"unreviewed","generatedAt":"2026-09-13T00:57:20Z","builder":"tools/build_cards.py@1.0.0"},"completeness":{"sections":{"classifiers":"filled","whatItIs":"filled","purpose":"filled","distinguishingFeatures":"filled","structure":"filled","agentConduct":"filled","ethics":"filled","owners":"filled","relations":"filled","interaction.identity":"filled","interaction.properties":"filled","interaction.recognition":"filled","interaction.capabilities":"filled","interaction.hazards":"filled","interaction.interfaces":"filled","interaction.context":"filled","sources":"filled"},"notes":{"_gate":"Published through the thing publication gate 1.0 on 2026-10-06T19:51:55+00:00: completeness 1.00; sense: Wikidata description; 2 live sources; review by codex: pass"},"score":1.0}}