{"schema":"https://ver.cy/schemas/card/1.0.0","id":"vr.tr.holmium","code":"thing-q1846","url":"https://ver.cy/models/thing/q1846/","name":"holmium","alternateNames":["holmium-165","holmium-166","holmium-167","holmium-168","holmium-169","holmium-170","holmium-171","holmium-172","holmium-173","holmium-174","holmium-175","holmium-140"],"kind":"thing","status":"published","version":"0.2.0-wave.2","language":"en","classifiers":{"family":"Thing Registry","category":"Physical world and living systems","entryKind":"thing","plane":"PHY","domain":["PHY.MAT"],"industry":[],"navPath":"","tags":[],"facets":{}},"whatItIs":"The chemical element with atomic number sixty-seven, a silvery lanthanide metal found in rare earth minerals, with one stable isotope, holmium-165, and radioactive isotopes such as holmium-166 used in medical research, notable for the highest magnetic moment of any element and used in magnets, lasers for medical and dental procedures, nuclear control rods and glass colouring; holmium is obtained from monazite and other rare earth ores and is described here with medical uses attributed to clinical sources.","purpose":"Let an agent explain holmium as an element and its properties, describe its uses in lasers, magnets and nuclear applications, describe rare earth supply, and support learning without personal medical advice.","scope":{"in":[],"out":[],"boundaries":[]},"distinguishingFeatures":["Strong magnetism","Laser uses","Single stable isotope","Rare earth"],"structure":{"bundles":[{"id":"understand","name":"Understand","description":"What holmium is.","layers":[{"id":"element","name":"Element","description":"The element.","findings":[{"id":"element-finding","name":"Element","description":"Element.","questions":[{"text":"What are the properties, occurrence and chemistry of holmium?","kind":"definition"},{"text":"Which entry fits the periodic table?","kind":"action"}]}]},{"id":"isotopes","name":"Isotopes","description":"Isotopes and magnetism.","findings":[{"id":"isotopes-finding","name":"Isotopes","description":"Isotopes.","questions":[{"text":"What isotopes of holmium exist, and why does it have the highest magnetic moment?","kind":"definition"},{"text":"Which entry fits magnetism?","kind":"action"}]}]}]},{"id":"use","name":"Use","description":"Uses.","layers":[{"id":"lasers","name":"Lasers","description":"Lasers and medicine.","findings":[{"id":"lasers-finding","name":"Lasers","description":"Lasers.","questions":[{"text":"How are holmium lasers used in medical and dental procedures, according to clinical sources?","kind":"provenance"},{"text":"Is the user asking about their own procedure, which needs a clinician?","kind":"boundary"}]}]},{"id":"other","name":"Other","description":"Magnets, nuclear and glass.","findings":[{"id":"other-finding","name":"Other","description":"Other.","questions":[{"text":"How is holmium used in magnets, control rods and glass colouring?","kind":"provenance"},{"text":"Which entry fits a specific application?","kind":"action"}]}]}]},{"id":"supply","name":"Supply","description":"Supply and environment.","layers":[{"id":"mining","name":"Mining","description":"Rare earth supply.","findings":[{"id":"mining-finding","name":"Mining","description":"Mining.","questions":[{"text":"Where is holmium produced, and what supply and environmental issues affect rare earths, according to public sources?","kind":"provenance"},{"text":"Is the information current?","kind":"boundary"}]}]},{"id":"recycling","name":"Recycling","description":"Recycling.","findings":[{"id":"recycling-finding","name":"Recycling","description":"Recycling.","questions":[{"text":"How are rare earths including holmium recycled?","kind":"provenance"},{"text":"Which entry fits rare earth elements?","kind":"action"}]}]}]},{"id":"learn","name":"Learn","description":"History and teaching.","layers":[{"id":"history","name":"History","description":"History.","findings":[{"id":"history-finding","name":"History","description":"History.","questions":[{"text":"How was holmium discovered and named?","kind":"provenance"},{"text":"Which references are standard?","kind":"provenance"}]}]},{"id":"teach","name":"Teach","description":"Teaching.","findings":[{"id":"teach-finding","name":"Teach","description":"Teaching.","questions":[{"text":"How can holmium illustrate lanthanide chemistry and magnetism?","kind":"action"},{"text":"Which misconceptions arise?","kind":"provenance"}]}]}]}]},"agentConduct":{"may":["Explain holmium's properties and uses in lasers and magnets.","Describe rare earth supply chains from published sources.","Distinguish holmium from other lanthanides."],"mustNot":["Give personal advice on holmium laser procedures.","Advise on handling radioactive holmium isotopes outside licensed settings.","Present supply figures without dates and sources.","Confuse holmium with other lanthanides."],"requiresHuman":["Using radioactive holmium isotopes."]},"ethics":{"considerations":["Rare earth mining carries environmental and labour costs.","Medical uses must be governed by clinicians."],"affectedParties":["Mining communities","Patients","Workers"]},"owners":{"steward":"Nobody owns the element; holders own their material, and nuclear regulators license radioactive isotopes.","roles":[],"masterSystems":[]},"relations":[{"target":"Q19569","type":"parent","note":"registry parent class"},{"target":"lanthanide","type":"related","note":"category"},{"target":"chemical element","type":"related","note":"category"},{"target":"rhenium","type":"related","note":"another rare metal with specialised uses"},{"target":"nuclear fission","type":"related","note":"control rod applications"}],"interaction":{"identity":{"applicability":"required","items":["Vercy registry: vr.tr.holmium","Wikidata: Q1846 (https://www.wikidata.org/wiki/Q1846)"]},"properties":{"applicability":"required","items":["Mass density: Approximately 8.8 g/cm3 - This approximate value describes solid holmium near room temperature.","Melting temperature: Approximately 1474 degrees Celsius - This approximate value describes pure holmium at atmospheric pressure.","Molar mass: Approximately 164.93 g/mol - This value describes naturally occurring holmium, which consists essentially of holmium-165."]},"recognition":{"applicability":"required","items":["Atomic number sixty-seven","Lanthanide with the highest magnetic moment","Dysprosium and erbium are neighbouring lanthanides","A silvery metal."]},"capabilities":{"applicability":"required","items":["explain the element","describe uses","describe supply","support learning"]},"hazards":{"applicability":"required","items":["Rare earth supply concentration","Agents giving personal advice on laser procedures","Confusing lanthanides"]},"interfaces":{"applicability":"required","items":["Chemical nomenclature","Medical device regulation for lasers","Critical raw material assessments"]},"context":{"applicability":"required","items":["Element sixty-seven, a lanthanide.","holmium metal","holmium in magnets","holmium lasers","holmium compounds and glass colouring","holmium isotopes"]}},"sources":[{"title":"Wikidata item Q1846: holmium","url":"https://www.wikidata.org/wiki/Q1846","note":"identity and sense of the item"},{"title":"Wikipedia: Holmium","url":"https://en.wikipedia.org/wiki/Holmium","note":"general description of the item"}],"openQuestions":["Should holmium lasers be a separate entry?","How should supply data be linked?","How should clinical guidance be linked?"],"resources":{"spec":"/models/things/publications/thing-q1846/spec.json"},"provenance":{"origin":"thing registry research (pass 2)","builtFrom":["models/things/publications/thing-q1846/spec.json"],"providers":["Claude"],"researchStatus":"unreviewed","generatedAt":"2026-09-12T05:47:46Z","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 2026-10-07T10:10:27+00:00: completeness 1.00; sense: Wikidata description; 2 live sources; review by codex: pass"},"score":1.0}}