{"schema":"https://ver.cy/schemas/card/1.0.0","id":"vr.tr.iron","code":"thing-q677","url":"https://ver.cy/models/thing/q677/","name":"iron","alternateNames":["cinder","iron-57 atom","iron fe-60","iron fe-52","iron fe-55","iron fe-59","(⁵⁸Fe)Iron","(⁵⁴Fe)Iron","(⁵¹Fe)Iron","allotrope of iron","iron-56","iron in biology"],"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":"A metallic chemical element, atomic number 26, the most used metal in the world as the basis of steel, abundant in the Earth crust and core, with isotopes including the stable iron-56 and iron-57 and radioactive iron-52, iron-55, iron-59 and iron-60, and an essential nutrient carried in haemoglobin, given as a medication for iron deficiency; iron corrodes as rust and is recycled at scale.","purpose":"Let an agent explain iron as an element, material and nutrient, describe its production, uses and corrosion, provide nutrition and medication information with attribution, and describe its isotopes.","scope":{"in":[],"out":[],"boundaries":[]},"distinguishingFeatures":["Most used metal","Ferromagnetic","Essential nutrient","Corrodes"],"structure":{"bundles":[{"id":"material","name":"Material","description":"Iron as a metal.","layers":[{"id":"production","name":"Production","description":"Making iron and steel.","findings":[{"id":"production-finding","name":"Production","description":"Production.","questions":[{"text":"How is iron produced from ore, and how is it made into steel?","kind":"definition"},{"text":"How is iron recycled?","kind":"provenance"}]}]},{"id":"corrosion","name":"Corrosion","description":"Rust and protection.","findings":[{"id":"corrosion-finding","name":"Corrosion","description":"Corrosion.","questions":[{"text":"Why does iron rust, and how is corrosion prevented?","kind":"definition"},{"text":"Which entry fits steel?","kind":"action"}]}]}]},{"id":"health","name":"Health","description":"Iron in the body.","layers":[{"id":"nutrition","name":"Nutrition","description":"Dietary iron.","findings":[{"id":"nutrition-finding","name":"Nutrition","description":"Nutrition.","questions":[{"text":"What do dietary guidelines say about iron intake and sources, and who is at risk of deficiency?","kind":"provenance"},{"text":"Is the user asking about their own iron levels, which needs a clinician?","kind":"boundary"}]}]},{"id":"medication","name":"Medication","description":"Iron supplements.","findings":[{"id":"medication-finding","name":"Medication","description":"Supplements.","questions":[{"text":"How are iron supplements used, in general terms, and what safety warnings apply, especially for children?","kind":"provenance"},{"text":"Is there a suspected iron overdose now?","kind":"boundary"}]}]}]},{"id":"science","name":"Science","description":"Chemistry and isotopes.","layers":[{"id":"properties","name":"Properties","description":"Properties and isotopes.","findings":[{"id":"properties-finding","name":"Properties","description":"Properties.","questions":[{"text":"What are the physical and chemical properties of iron, and what are its stable and radioactive isotopes such as iron-57, iron-59 and iron-60?","kind":"provenance"},{"text":"Why is iron-56 so stable in nuclear terms?","kind":"definition"}]}]},{"id":"cosmos","name":"Cosmos","description":"Iron in Earth and space.","findings":[{"id":"cosmos-finding","name":"Cosmos","description":"Cosmos.","questions":[{"text":"Why is iron abundant in the Earth core and in stars, and what does iron-60 reveal about supernovae?","kind":"provenance"},{"text":"How is iron used in magnetism?","kind":"definition"}]}]}]},{"id":"history","name":"History","description":"History and culture.","layers":[{"id":"history","name":"History","description":"Iron in history.","findings":[{"id":"history-finding","name":"History","description":"History.","questions":[{"text":"How did iron working develop, and what was the Iron Age?","kind":"provenance"},{"text":"How did iron shape industry?","kind":"provenance"}]}]},{"id":"teach","name":"Teach","description":"Teaching.","findings":[{"id":"teach-finding","name":"Teach","description":"Teaching.","questions":[{"text":"How can iron chemistry and metallurgy be taught?","kind":"action"},{"text":"Which misconceptions arise?","kind":"provenance"}]}]}]}]},"agentConduct":{"may":["Report iron's properties, uses and sources from reliable references.","Handle iron and steel products following site safety rules."],"mustNot":["Recommend iron supplements or doses to a person without a clinician.","Leave iron supplements where children can reach them.","Present rusted or corroded structural iron as sound without inspection.","Misreport the grade or origin of iron or steel products."],"requiresHuman":["Approving structural iron or steel for safety-critical use."]},"ethics":{"considerations":["Iron overdose is a leading cause of poisoning in young children.","Iron mining and steelmaking carry large environmental and labour costs."],"affectedParties":["Children","People with iron disorders","Workers in mining and steel"]},"owners":{"steward":"Nobody owns the element; owners of mines and products answer for them.","roles":[],"masterSystems":[]},"relations":[{"target":"Q12140","type":"parent","note":"registry parent class"},{"target":"Q3333419","type":"parent","note":"registry parent class"},{"target":"chemical element","type":"related","note":"category"},{"target":"medication","type":"related","note":"as a supplement"},{"target":"oxide","type":"related","note":"rust and ores"},{"target":"Abundance of elements in Earth crust","type":"related","note":"abundance"}],"interaction":{"identity":{"applicability":"required","items":["Vercy registry: vr.tr.iron","Wikidata: Q677 (https://www.wikidata.org/wiki/Q677)"]},"properties":{"applicability":"required","items":["Mass density: Approximately 7.9 g/cm3 - This value describes solid, substantially pure iron near room temperature.","Melting temperature: Approximately 1538 degrees Celsius - This value describes pure iron at approximately atmospheric pressure."]},"recognition":{"applicability":"required","items":["Atomic number 26","Magnetic, rusts","Steel is an iron alloy","A grey, lustrous metal that rusts to reddish brown."]},"capabilities":{"applicability":"required","items":["explain properties and isotopes","describe production, steel and corrosion","provide nutrition and supplement information","describe iron in geology and astronomy"]},"hazards":{"applicability":"required","items":["Corrosion failures","Iron deficiency and iron overload","Iron supplement poisoning in children"]},"interfaces":{"applicability":"required","items":["Steel and material standards","Dietary reference intakes for iron","Medicines regulation for iron supplements"]},"context":{"applicability":"required","items":["A structural metal and essential nutrient.","iron metal and cast iron","steel and alloys","iron isotopes","iron compounds and oxides","dietary and medicinal iron"]}},"sources":[{"title":"Wikidata item Q677: iron","url":"https://www.wikidata.org/wiki/Q677","note":"identity and sense of the item"},{"title":"Wikipedia: Iron","url":"https://en.wikipedia.org/wiki/Iron","note":"general description of the item"}],"openQuestions":["Should steel be a separate entry?","How should nutrition guidance be linked?","How should isotope data be linked?"],"resources":{"spec":"/models/things/publications/thing-q677/spec.json"},"provenance":{"origin":"thing registry research (pass 2)","builtFrom":["models/things/publications/thing-q677/spec.json"],"providers":["Claude"],"researchStatus":"unreviewed","generatedAt":"2026-09-11T22:12:25Z","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 2026-10-07T10:10:32+00:00: completeness 1.00; sense: Wikidata description; 2 live sources; review by codex: pass"},"score":1.0}}