paramelaconite
Enable an agent to recognise paramelaconite, assess the identity and condition of a specimen or material, and select justified examination, handling or experimental actions.
Bundle → Layer → Finding → Questions Filled
6 bundles · 11 layers · 16 findings · 29 questions
Phase identity Establish what qualifies as paramelaconite and which observations support that assignment.
Composition and valence
Relate measured chemistry to the ideal mixed-valence oxide.
Composition consistency
Record elemental and oxidation-state evidence without treating bulk averages as proof of a single phase.
- Does the measured Cu:O ratio support Cu4O3 within analytical uncertainty, and how was oxygen determined? measurement
- What evidence places Cu(I) and Cu(II) within the same phase rather than separate oxide grains or surface layers? boundary
Crystallographic confirmation
Test the structural assignment against an identified reference.
Reference structure match
Retain the reference, indexed reflections, refinement evidence and competing assignments.
- Which measured reflections and systematic absences support the paramelaconite structure? measurement
- Which published structure or reference dataset was used, and can its provenance be traced? provenance
- Can cuprite, tenorite or their mixture explain the observations equally well? boundary
Specimen integrity Describe how paramelaconite occupies the examined material and how faithfully an analysis represents it.
Intergrowths and purity
Resolve target-phase abundance and contributions from neighbouring phases.
Phase-resolved sample
Map or quantify paramelaconite and accompanying material at the scale relevant to the proposed action.
- What fractions of the analysed material are paramelaconite, other copper oxides and unidentified material? measurement
- Are accompanying phases discrete grains, inclusions, coatings or intergrowths that cannot be separated without damage? boundary
Sampling and preparation
Connect measurements to specific specimen regions and preparation steps.
Representative analysis
Track the sampled region, preparation effects and limits on extrapolation.
- Which grain, surface, depth or aliquot produced each identification or property measurement? provenance
- Could polishing, grinding, mounting or surface cleaning have changed the phase mixture or chemistry being measured? boundary
- What minimum sampling is sufficient to resolve identity while preserving the specimen's useful features? action
Origin and equivalence Distinguish mineral occurrence records from synthetic materials and establish which comparisons are justified.
Natural specimen history
Link a specimen to occurrence, custody and analytical authentication.
Authenticated occurrence
Separate inherited identification and locality labels from independently documented evidence.
- What collection identifier, locality record and custody history connect this specimen to its claimed occurrence? provenance
- Was paramelaconite confirmed on this specimen, or is its identification inherited from a label or neighbouring material? provenance
Synthetic counterparts
Assess structural equivalence while preserving differences in form and preparation.
Synthetic equivalence limits
Require phase evidence before using synthetic samples to infer mineral properties.
- What evidence confirms that the synthetic powder or film has the paramelaconite structure rather than merely a nominal Cu4O3 composition? definition
- Which substrate, grain-size, strain, defect or impurity differences limit comparison with natural crystals? boundary
Condition and properties Bind phase persistence and measured behaviour to the conditions under which they were established.
Phase persistence
Track changes associated with temperature, atmosphere and chemical exposure.
Verified condition window
Record tested conditions and identified products without inventing universal stability thresholds.
- Over what temperature, atmosphere, pressure and exposure time was the paramelaconite phase actually verified? measurement
- After treatment, what analysis establishes retention of paramelaconite or formation of other phases? measurement
- Which proposed treatment requires a preliminary phase-retention check? action
Property attribution
Separate intrinsic-phase evidence from effects of impurities, interfaces and specimen geometry.
Qualified property record
Attach sample identity, conditions, uncertainty and measurement method to each reported property.
- Which density, mechanical, optical, electrical or magnetic properties have been measured on a phase-characterised sample? measurement
- Could another copper oxide, a substrate, porosity or preferred orientation dominate the reported result? boundary
Handling and use evidence Connect proposed actions with material-specific safety information and specimen preservation needs.
Chemical record applicability
Verify the identity and relevance of identifiers and safety documents.
Applicable identity record
Keep unverified identifiers or classifications unresolved rather than borrowing them from CuO or Cu2O.
- Which authoritative CAS, EC or PubChem record, if any, explicitly identifies this composition and material rather than another copper oxide? definition
- What safety classification or exposure guidance applies to this sample's composition, physical form and jurisdiction? action
Action-specific preservation
Assess examination, preparation and disposal against sample form and evidential value.
Justified material action
Record the evidence and constraints supporting a particular action on the specimen or material.
- Will the proposed action generate powder, aerosol, dissolved copper or altered phases requiring a different handling assessment? action
- Which storage, mounting or analytical procedure is supported for preserving this sample's phase identity and diagnostic features? action
Evidence and external alignment What the world already says about this thing, gathered so the model can be checked against it.
Reported evidence
Findings from the breadth pass, kept separate from the structural claims.
Check these first
Recalled without web access and unsourced; every item is a lead to verify.
- Which of these check these first hold for the sense of paramelaconite this model covers, and on what evidence? provenance
Identifiers and schemes
Recalled without web access and unsourced; every item is a lead to verify.
- Which of these identifiers and schemes hold for the sense of paramelaconite this model covers, and on what evidence? provenance
Real-world use
Recalled without web access and unsourced; every item is a lead to verify.
- Which of these real-world use hold for the sense of paramelaconite this model covers, and on what evidence? provenance
Typical measurements
Recalled without web access and unsourced; every item is a lead to verify.
- Which of these typical measurements hold for the sense of paramelaconite this model covers, and on what evidence? provenance
Failure modes and hazards
Recalled without web access and unsourced; every item is a lead to verify.
- Which of these failure modes and hazards hold for the sense of paramelaconite this model covers, and on what evidence? provenance
Neighbouring kinds and how to tell them apart
Recalled without web access and unsourced; every item is a lead to verify.
- Which of these neighbouring kinds and how to tell them apart hold for the sense of paramelaconite this model covers, and on what evidence? provenance
Classifiers Filled
- Family
- Thing Registry
- Category
- Physical world and living systems
- Entry kind
- thing
- Plane
- PHY
- Domain
- PHY.MAT
What it is Filled
Paramelaconite is a rare tetragonal copper oxide mineral with ideal formula Cu4O3, containing both copper(I) and copper(II).
In scope
- Ideal Cu4O3 composition and evidence for mixed copper oxidation states
- Crystallographic identification and discrimination from other copper oxides
- Paramelaconite abundance, intergrowths and impurities within an examined sample
- Natural specimen provenance and synthetic material equivalence
- Changes during storage, preparation and experimental exposure
- Evidence supporting material properties and handling decisions
Out of scope
- Cuprite and tenorite as independently modelled mineral species
- The complete host rock, ore deposit or mining operation
- Manufacturing processes and their equipment
- Devices, coatings or commercial formulations containing paramelaconite
- General copper toxicology and jurisdiction-wide chemical regulation
Why it exists Filled
Enable an agent to recognise paramelaconite, assess the identity and condition of a specimen or material, and select justified examination, handling or experimental actions.
Distinguishing features Filled
- Check ideal Cu4O3 stoichiometry, while recognising that a Cu2O-CuO mixture can reproduce the same bulk elemental ratio.
- Require diffraction evidence for the tetragonal I41/amd structure; reported reference cell dimensions are approximately a = 5.837 Å and c = 9.932 Å. [Crystal structure study](https://rruff.geo.arizona.edu/doclib/am/vol63/AM63_180.pdf)
- Test whether mixed Cu(I)/Cu(II) evidence belongs to one crystalline phase rather than separate copper oxides.
- Treat colour, specimen labels and locality as supporting observations rather than sufficient identification.
What robots and AI may and may not do Filled
Must not
- Misstate a specimen's identity or locality to raise its value.
- Present a common black copper oxide as this rare mineral without analysis.
- Collect from protected sites without permission.
Only with a human decision
- Removing specimens from a site or collection.
May
- Identify paramelaconite specimens from documented features and analysis.
- Report locality and provenance from the collector's or museum's records.
Moral aspects Filled
- Rare minerals attract fakes; honest identification protects buyers and science.
Who is affected
- Collectors and buyers
- Museums
Owners Filled
Steward
The collector or museum that holds a specimen.
Links to other meta-models Filled
parent
- Q945532 - registry parent class
What else AI and robots need to interact with it Filled
Identity and identifiers required Filled
- Vercy registry: vr.tr.paramelaconite
- Wikidata: Q13109 (https://www.wikidata.org/wiki/Q13109)
Direct properties required Filled
- Phase identity confidence: unverified; provisional; confirmed; contradicted, with supporting analyses
- Copper-to-oxygen atomic ratio: dimensionless; ideal 4:3, with method and uncertainty
- Copper oxidation-state distribution: Cu(I) and Cu(II) fractions; ideal formal ratio 1:1
- Crystal structure: tetragonal I41/amd reference structure; measured assignment and confidence
- Lattice parameters: Å, with temperature, uncertainty and refinement method
- Phase abundance: mass fraction or volume fraction, explicitly distinguished, with detection limits
- Material origin and form: natural or synthetic; crystal, intergrowth, powder or film
- Host and associated phases: identified mineral phases, substrate or matrix linked to mapped regions
- Exposure and transformation state: baseline; exposed without detected change; transformed; unresolved, with conditions
Recognition required Filled
- Black, often metallic-looking crystals.
- Easily confused with other copper oxides; analysis is needed.
Capabilities and actions required Filled
- Compare diffraction and composition evidence to confirm or reject a paramelaconite assignment.
- Select a representative region or aliquot while documenting associated copper oxides.
- Estimate phase purity and qualify properties measured on mixed samples.
- Link a natural specimen or synthetic analogue to its evidence and preparation history.
- Plan examination or treatment within documented preservation and handling constraints.
- Reassess identity after heating, chemical exposure, grinding or irradiation.
Hazards and failure modes required Filled
- Misidentification with common copper oxides.
- Fragile crystals damaged in handling.
Standards and interfaces required Filled
- The official mineral list maintained by the International Mineralogical Association's Commission on New Minerals, Nomenclature and Classification recognizes paramelaconite as a mineral species.
Context of use required Filled
- Paramelaconite is encountered as a rare mineral in oxidized copper deposits and in mineralogical collections.
- Researchers examine it to study copper oxide mineral formation, crystal structure and mixed copper oxidation states.
- Specimen identification requires analytical evidence because appearance alone may not distinguish it from other dark copper minerals.
Sources Filled
- Wikidata item Q13109: paramelaconite - identity and sense of the item
- Wikipedia: Paramelaconite - general description of the item
Open questions
- What compositional departures, substitutions or oxygen deficiencies can the paramelaconite structure accommodate before a different phase designation is required?
- Which validated diffraction or complementary spectroscopic criteria reliably distinguish small paramelaconite fractions from cuprite-tenorite mixtures?
- What temperature-atmosphere-time conditions preserve or transform natural crystals, powders and films, and are reported thermal events decomposition rather than melting?
- Which measured physical properties are reproducible for phase-pure material, and how strongly do defects, interfaces and sample form affect them?
- Which chemical identifiers, hazard classifications and exposure limits are specifically applicable to paramelaconite or verified synthetic equivalents?
Machine files
Provenance
thing registry research (pass 2) · unreviewed
Built from: models/things/publications/thing-q13109/spec.json