{"schema":"https://ver.cy/schemas/card/1.0.0","id":"vr.tr.emerald","code":"thing-q43513","url":"https://ver.cy/models/thing/q43513/","name":"emerald","alternateNames":["trapiche emerald","synthetic emerald","Colombian emerald"],"kind":"thing","status":"published","version":"0.1.0-research.1","language":"en","classifiers":{"family":"Thing Registry","category":"Physical world and living systems","entryKind":"thing","plane":"PHY","domain":["PHY.MAT"],"industry":[],"navPath":"","tags":[],"facets":{}},"whatItIs":"Emerald is a green gemstone variety of the beryl mineral (Be3Al2Si6O18), typically coloured by chromium and/or vanadium, whose classification as emerald rather than other green beryl depends on colour quality, including hue, tone and saturation, and the applicable gemmological convention rather than chromophore chemistry alone.","purpose":"Enable an AI agent to recognise an emerald, assess its identity, condition and treatment evidence, and decide how it may be examined, handled, worked or represented.","scope":{"in":["Identification as emerald rather than another green mineral, imitation or assembled stone","Natural or laboratory-grown origin and the evidence supporting that determination","Colour, transparency, inclusions and optical appearance","Fractures, fracture filling and other detected or suspected treatments","Rough or fashioned form, dimensions, mass and suitability for further working","Stone-specific examination, handling and disclosure constraints"],"out":["The complete beryl mineral family and its other varieties","The geology, operations and environmental performance of an emerald mine","Jewellery construction, metal settings and the condition of an entire jewellery item","Ownership, transaction terms, insurance and monetary valuation","Certification laboratory operations and general gem-testing instrument models"],"boundaries":[]},"distinguishingFeatures":["Establish that the material is beryl using mutually supporting gemmological observations; green colour alone does not distinguish emerald from glass or other green gems.","Assess whether the beryl's colour qualifies as emerald under an explicitly named classification convention; retain borderline green beryl classifications as unresolved.","Evaluate growth structures, inclusions and laboratory evidence to distinguish natural emerald from laboratory-grown emerald; shared composition does not establish natural origin.","Inspect for interfaces, coatings or assembled components that could make an imitation appear to be a single emerald.","Separate evidence of emerald identity from evidence of fracture filling: a treated emerald may remain emerald while requiring different disclosure and care."],"structure":{"bundles":[{"id":"emerald-identity","name":"Emerald identity and classification","description":"Establishes whether the examined material belongs within the emerald model.","layers":[{"id":"beryl-identification","name":"Beryl identification","description":"Connects the material determination to observations and the limits of the available tests.","findings":[{"id":"material-evidence","name":"Evidence for emerald material","description":"Records observations supporting beryl identity and checks whether the examined item is a single material.","questions":[{"text":"Which optical, microscopic or analytical observations support beryl identity, and which competing identifications remain possible?","id":"material-evidence-q01","kind":"measurement"},{"text":"Is the item a single stone, or are there interfaces, coatings, backing materials or assembled components affecting its appearance?","id":"material-evidence-q02","kind":"boundary"}]}]},{"id":"emerald-colour-boundary","name":"Emerald versus green beryl","description":"Makes the colour-based variety decision explicit rather than assuming every green beryl is emerald.","findings":[{"id":"variety-classification","name":"Colour classification basis","description":"Records the convention and evidence used to apply the emerald name.","questions":[{"text":"Under which laboratory or reference convention does this beryl's colour qualify as emerald?","id":"variety-classification-q01","kind":"definition"},{"text":"Does the available colour and colour-causing-element evidence settle the classification, or should the emerald-green beryl boundary remain unresolved?","id":"variety-classification-q02","kind":"boundary"}]}]}]},{"id":"growth-origin-evidence","name":"Growth origin and attribution","description":"Separates natural or laboratory growth from geographic-source claims and report provenance.","layers":[{"id":"natural-laboratory-growth","name":"Natural or laboratory growth","description":"Assesses growth origin through documented internal features and laboratory findings.","findings":[{"id":"growth-origin-determination","name":"Growth origin determination","description":"Retains the observations, interpretation and uncertainty behind an origin conclusion.","questions":[{"text":"Which observed growth structures, inclusions or analytical results support natural or laboratory-grown origin?","id":"growth-origin-determination-q01","kind":"provenance"},{"text":"What additional examination is needed when the observed features do not distinguish the two origins reliably?","id":"growth-origin-determination-q02","kind":"action"}]}]},{"id":"source-attribution","name":"Geographic attribution and specimen linkage","description":"Distinguishes a laboratory origin opinion from a seller's claim and verifies that supporting records match the stone.","findings":[{"id":"attribution-support","name":"Support for source claims","description":"Records claimed and assessed origins separately, preserving attribution limits.","questions":[{"text":"Is a claimed country or mine supported by traceable records, a laboratory opinion or only an unverified statement?","id":"attribution-support-q01","kind":"provenance"},{"text":"Which measurements, images or identifying features connect each report to this particular emerald?","id":"attribution-support-q02","kind":"provenance"}]}]}]},{"id":"colour-and-fashioned-appearance","name":"Colour and fashioned appearance","description":"Describes the emerald's visible performance in relation to its internal colour distribution and physical form.","layers":[{"id":"colour-transparency-distribution","name":"Colour and transparency distribution","description":"Records appearance under controlled conditions and locates variation within the stone.","findings":[{"id":"observed-colour-profile","name":"Observed colour profile","description":"Distinguishes repeatable colour observations from viewing effects and local zoning.","questions":[{"text":"What hue, tone, saturation and transparency are observed under specified illumination and viewing orientations?","id":"observed-colour-profile-q01","kind":"measurement"},{"text":"Where are colour zoning, cloudy regions or inclusion concentrations located relative to the intended viewing face?","id":"observed-colour-profile-q02","kind":"measurement"}]}]},{"id":"form-optical-presentation","name":"Form and optical presentation","description":"Relates rough or fashioned geometry to visible colour, light return and examination access.","findings":[{"id":"geometry-appearance-effects","name":"Geometry-dependent appearance","description":"Records how orientation and working choices affect the emerald's presentation.","questions":[{"text":"For a fashioned stone, where are windowing, dark areas, polish defects or edge damage visible under recorded viewing conditions?","id":"geometry-appearance-effects-q01","kind":"measurement"},{"text":"For proposed cutting or recutting, how would the chosen orientation use colour zoning while avoiding mapped fractures and limiting material loss?","id":"geometry-appearance-effects-q02","kind":"action"}]}]}]},{"id":"fractures-treatments-and-care","name":"Fractures, treatments and care","description":"Connects structural condition and treatment evidence to permissible handling and intervention.","layers":[{"id":"fracture-filling-assessment","name":"Fractures and filling assessment","description":"Maps damage and records the evidence and limits of treatment detection.","findings":[{"id":"fracture-treatment-map","name":"Fracture and treatment map","description":"Associates surface-reaching fractures, vulnerable areas and suspected or detected filling with locations on the stone.","questions":[{"text":"Which fractures reach the surface or intersect corners, thin edges or proposed contact points?","id":"fracture-treatment-map-q01","kind":"measurement"},{"text":"What examination supports the presence, type and extent of fracture filling or another treatment, and what could that examination fail to detect?","id":"fracture-treatment-map-q02","kind":"measurement"}]}]},{"id":"intervention-and-disclosure","name":"Intervention and disclosure","description":"Uses the current assessment to constrain care, working and representations about the emerald.","findings":[{"id":"condition-dependent-actions","name":"Condition-dependent actions","description":"Records action-specific decisions and the uncertainties that require specialist assessment.","questions":[{"text":"Given mapped fractures and known or uncertain fillers, which proposed cleaning, heating, ultrasonic, solvent, polishing or setting operations require specialist assessment before proceeding?","id":"condition-dependent-actions-q01","kind":"action"},{"text":"Which growth-origin and treatment statements can be disclosed from the evidence, and which claims must remain qualified or unknown?","id":"condition-dependent-actions-q02","kind":"boundary"},{"text":"After an intervention, which images, measurements and treatment observations must be repeated to establish the emerald's new state?","id":"condition-dependent-actions-q03","kind":"action"}]}]}]},{"id":"evidence-and-external-alignment","name":"Evidence and external alignment","description":"What the world already says about this thing, gathered so the model can be checked against it.","layers":[{"id":"reported-evidence","name":"Reported evidence","description":"Findings from the breadth pass, kept separate from the structural claims.","findings":[{"id":"evidence-kinds","name":"Kinds and varieties","description":"Reported by the breadth pass; each item needs checking against its source before it becomes normative.","questions":[{"text":"Which of these kinds and varieties hold for the sense of emerald this model covers, and on what evidence?","id":"evidence-kinds-q01","kind":"provenance"}]},{"id":"evidence-identifiers","name":"Identifiers and schemes","description":"Reported by the breadth pass; each item needs checking against its source before it becomes normative.","questions":[{"text":"Which of these identifiers and schemes hold for the sense of emerald this model covers, and on what evidence?","id":"evidence-identifiers-q01","kind":"provenance"}]},{"id":"evidence-standards-and-regulation","name":"Standards and regulation","description":"Reported by the breadth pass; each item needs checking against its source before it becomes normative.","questions":[{"text":"Which of these standards and regulation hold for the sense of emerald this model covers, and on what evidence?","id":"evidence-standards-and-regulation-q01","kind":"provenance"}]},{"id":"evidence-real-world-use","name":"Real-world use","description":"Reported by the breadth pass; each item needs checking against its source before it becomes normative.","questions":[{"text":"Which of these real-world use hold for the sense of emerald this model covers, and on what evidence?","id":"evidence-real-world-use-q01","kind":"provenance"}]},{"id":"evidence-measurements","name":"Typical measurements","description":"Reported by the breadth pass; each item needs checking against its source before it becomes normative.","questions":[{"text":"Which of these typical measurements hold for the sense of emerald this model covers, and on what evidence?","id":"evidence-measurements-q01","kind":"provenance"}]},{"id":"evidence-failure-modes-and-hazards","name":"Failure modes and hazards","description":"Reported by the breadth pass; each item needs checking against its source before it becomes normative.","questions":[{"text":"Which of these failure modes and hazards hold for the sense of emerald this model covers, and on what evidence?","id":"evidence-failure-modes-and-hazards-q01","kind":"provenance"}]},{"id":"evidence-regional-variation","name":"Regional variation","description":"Reported by the breadth pass; each item needs checking against its source before it becomes normative.","questions":[{"text":"Which of these regional variation hold for the sense of emerald this model covers, and on what evidence?","id":"evidence-regional-variation-q01","kind":"provenance"}]},{"id":"evidence-neighbours","name":"Neighbouring kinds and how to tell them apart","description":"Reported by the breadth pass; each item needs checking against its source before it becomes normative.","questions":[{"text":"Which of these neighbouring kinds and how to tell them apart hold for the sense of emerald this model covers, and on what evidence?","id":"evidence-neighbours-q01","kind":"provenance"}]}]}]}]},"agentConduct":{"may":["Identify emeralds and report treatments and origin from gemmological reports.","Advise users to get a laboratory report before a valuable purchase."],"mustNot":["Sell treated, synthetic or imitation stones as natural untreated emeralds.","Help trade emeralds from conflict areas or illegal mines.","Execute purchases or give personalized investment advice on gems."],"requiresHuman":["Buying, selling or valuing emeralds for someone."]},"ethics":{"considerations":["Emerald mining has been tied to violence, child labour and unsafe work.","Undisclosed treatments mislead buyers."],"affectedParties":["Miners and their communities","Buyers"]},"owners":{"steward":"The person who owns each stone; gem laboratories issue reports.","roles":[],"masterSystems":[]},"relations":[{"target":"Q103480","type":"parent","note":"registry parent class"},{"target":"Q83437","type":"parent","note":"registry parent class"}],"interaction":{"identity":{"applicability":"required","items":["Vercy registry: vr.tr.emerald","Wikidata: Q43513 (https://www.wikidata.org/wiki/Q43513)"]},"properties":{"applicability":"required","items":["Material identification: Confirmed emerald | provisional emerald | green beryl boundary unresolved | other material | undetermined; with evidence","Growth origin: Natural | laboratory-grown | undetermined; with method and confidence","Observed colour: Hue, tone and saturation under recorded illumination, background and viewing orientation","Transparency: Transparent | translucent | opaque | mixed; with observation conditions","Fracture distribution: Mapped internal and surface-reaching fractures, including their relation to edges, corners and thin sections","Treatment assessment: Detected | suspected | not detected under stated examination | not examined; treatment type and extent where supported","Growth and inclusion observations: Observed inclusion types, growth zoning and diagnostic features, with images and interpretation confidence","Physical form: Crystal | rough fragment | preform | faceted stone | cabochon | carving; attached matrix or mounting noted","Mass and dimensions: Mass in carats or grams; dimensions in millimetres; measured or estimated status","Laboratory report linkage: Identified report linked through matching measurements, images, inscriptions or other specimen features"]},"recognition":{"applicability":"required","items":["A green gem whose colour ranges from bluish to yellowish green.","Natural stones often show internal inclusions."]},"capabilities":{"applicability":"required","items":["Select an examination sequence to resolve emerald identity, origin or treatment uncertainty.","Document colour, inclusions and fractures with repeatable viewing conditions and specimen-linked images.","Refer unresolved growth origin, filler identity or geographic-origin claims for appropriate laboratory examination.","Evaluate cutting, polishing or mounting proposals against fracture locations, colour distribution and expected material loss.","Choose cleaning, storage and handling actions compatible with the observed fractures and known or uncertain treatments.","Prepare evidence-qualified descriptions that disclose laboratory growth, detected treatments and unresolved claims."]},"hazards":{"applicability":"required","items":["Impacts and concentrated pressure can chip or fracture emeralds, particularly where internal fractures already weaken the stone.","Heat, chemicals and some cleaning methods can damage fracture fillers or alter the stone's appearance.","Undisclosed treatments or incorrect identification can cause financial loss and misleading representations of value."]},"interfaces":{"applicability":"required","items":["The Gemstone Book, issued by the World Jewellery Confederation, provides nomenclature and treatment disclosure guidance applicable to emeralds."]},"context":{"applicability":"required","items":["Emerald is used in jewellery, ornamental objects and gemstone collections for its green colour and decorative value.","Gemmological laboratories and the gemstone trade examine emeralds to establish identity, distinguish natural from synthetic material and assess treatments."]}},"sources":[{"title":"Emerald Quality Factors / Emerald Description","url":"https://www.gia.edu/emerald-quality-factor","note":"Gemmological definition of emerald as green beryl coloured by chromium and/or vanadium; quality factors (colour, clarity, cut, carat); prevalence of clarity enhancement."},{"title":"Emerald","url":"https://www.mindat.org/min-1375.html","note":"Mineral identity as a variety of beryl; chemistry Be3Al2Si6O18 with Cr/V chromophores; hardness, density, occurrence types."},{"title":"CIBJO Gemstone Book (Blue Book) - Coloured Gemstones","url":"https://www.cibjo.org/the-blue-books/","note":"Trade nomenclature, disclosure of treatments (oiling, resin filling), and distinction of synthetic vs natural emerald."},{"title":"Beryl and emerald commodity / mineral information","url":"https://pubs.usgs.gov/periodicals/mcs2024/mcs2024-beryllium.pdf","note":"Industrial and gem beryl context; beryllium mineralogy; producing regions."},{"title":"Wikidata item Q43513: emerald","url":"https://www.wikidata.org/wiki/Q43513","note":"identity and sense of the item"},{"title":"Wikipedia: Emerald","url":"https://en.wikipedia.org/wiki/Emerald","note":"general description of the item"}],"openQuestions":["Which authoritative classification convention should govern borderline emerald versus green beryl, including the role of colour-causing elements?","Which combinations of examination methods reliably distinguish natural and laboratory-grown emerald across relevant growth methods and difficult specimens?","How should treatment extent be represented when laboratories use different grading terms or cannot identify the filling substance?","What evidence supports action-specific care limits for particular fillers, fracture geometries and previous interventions?","How should geographic-origin opinions with different confidence levels or conflicting laboratory conclusions be reconciled?"],"resources":{"spec":"/models/things/publications/thing-q43513/spec.json"},"provenance":{"origin":"thing registry research (pass 2)","builtFrom":["models/things/publications/thing-q43513/spec.json"],"providers":["Codex","Grok"],"researchStatus":"unreviewed","generatedAt":"2026-09-07T11:28:50Z","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 2026-10-07T12:16:33+00:00: completeness 1.00; sense: Wikidata description; 5 live sources; review by codex: pass"},"score":1.0}}