Research draft

emerald

vr.tr.emerald · PHY.MAT

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.

Thing Registry Physical world and living systems

Research draft, second pass

A second pass drafted this model: the structure a model of this thing needs, and what is known about it in the world. The line under this one says how the second half was obtained - researched against sources, or recalled without web access, in which case nothing here was read anywhere and every claim is a lead to verify. Unreviewed either way.

Researched by: Codex + Grok

Purpose and description

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.

Emerald is a chromium- and/or vanadium-bearing variety of the beryl mineral (Be3Al2Si6O18) whose green colour is caused by Cr3+ and/or V3+ substituting for Al in the crystal structure, distinguished in gemmology from other green beryls by that chromophore chemistry rather than by hue alone.

It can be 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..

Distinguishing features

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.

Scope

+ 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

- 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

Characteristics

Material identification: Confirmed emerald | provisional emerald | green beryl boundary unresolved | other material | undetermined; with evidence Controls whether emerald-specific interpretation and actions are justified.
Growth origin: Natural | laboratory-grown | undetermined; with method and confidence Distinguishes geological formation from laboratory growth without confusing either with imitation.
Observed colour: Hue, tone and saturation under recorded illumination, background and viewing orientation Supports emerald classification and comparison while accounting for viewing conditions.
Transparency: Transparent | translucent | opaque | mixed; with observation conditions Describes light transmission separately from colour and surface polish.
Fracture distribution: Mapped internal and surface-reaching fractures, including their relation to edges, corners and thin sections Locates potential failure points and sites where fillers may be present.
Treatment assessment: Detected | suspected | not detected under stated examination | not examined; treatment type and extent where supported Prevents absence of evidence from being represented as proof of an untreated stone.
Growth and inclusion observations: Observed inclusion types, growth zoning and diagnostic features, with images and interpretation confidence Supports identity and origin assessment without treating a single feature as conclusive.
Physical form: Crystal | rough fragment | preform | faceted stone | cabochon | carving; attached matrix or mounting noted Determines accessible examination surfaces and feasible working actions.
Mass and dimensions: Mass in carats or grams; dimensions in millimetres; measured or estimated status Supports specimen matching, documentation and assessment of material removal.
Laboratory report linkage: Identified report linked through matching measurements, images, inscriptions or other specimen features Ensures a report's conclusions actually apply to the emerald being assessed.

Also called

trapiche emeraldsynthetic emeraldColombian emerald

Where this came from

wikidata · CC0 1.0

Source repository Registry entry point

Drafted structure

Bundle to layer to finding to question, as the second pass will find it: 5 bundles · 9 layers · 16 findings · 25 questions.

Emerald identity and classification Establishes whether the examined material belongs within the emerald model.

Green appearance can conceal a different mineral, an imitation or a classification boundary within beryl.

Beryl identification

Connects the material determination to observations and the limits of the available tests.

Evidence for emerald material

Records observations supporting beryl identity and checks whether the examined item is a single material.

Which optical, microscopic or analytical observations support beryl identity, and which competing identifications remain possible? measurement
Is the item a single stone, or are there interfaces, coatings, backing materials or assembled components affecting its appearance? boundary

Emerald versus green beryl

Makes the colour-based variety decision explicit rather than assuming every green beryl is emerald.

Colour classification basis

Records the convention and evidence used to apply the emerald name.

Under which laboratory or reference convention does this beryl's colour qualify as emerald? definition
Does the available colour and colour-causing-element evidence settle the classification, or should the emerald-green beryl boundary remain unresolved? boundary

Growth origin and attribution Separates natural or laboratory growth from geographic-source claims and report provenance.

Emerald material identity alone cannot establish how or where the stone formed.

Natural or laboratory growth

Assesses growth origin through documented internal features and laboratory findings.

Growth origin determination

Retains the observations, interpretation and uncertainty behind an origin conclusion.

Which observed growth structures, inclusions or analytical results support natural or laboratory-grown origin? provenance
What additional examination is needed when the observed features do not distinguish the two origins reliably? action

Geographic attribution and specimen linkage

Distinguishes a laboratory origin opinion from a seller's claim and verifies that supporting records match the stone.

Support for source claims

Records claimed and assessed origins separately, preserving attribution limits.

Is a claimed country or mine supported by traceable records, a laboratory opinion or only an unverified statement? provenance
Which measurements, images or identifying features connect each report to this particular emerald? provenance

Colour and fashioned appearance Describes the emerald's visible performance in relation to its internal colour distribution and physical form.

The same emerald can present differently with illumination, orientation, cut and mounting.

Colour and transparency distribution

Records appearance under controlled conditions and locates variation within the stone.

Observed colour profile

Distinguishes repeatable colour observations from viewing effects and local zoning.

What hue, tone, saturation and transparency are observed under specified illumination and viewing orientations? measurement
Where are colour zoning, cloudy regions or inclusion concentrations located relative to the intended viewing face? measurement

Form and optical presentation

Relates rough or fashioned geometry to visible colour, light return and examination access.

Geometry-dependent appearance

Records how orientation and working choices affect the emerald's presentation.

For a fashioned stone, where are windowing, dark areas, polish defects or edge damage visible under recorded viewing conditions? measurement
For proposed cutting or recutting, how would the chosen orientation use colour zoning while avoiding mapped fractures and limiting material loss? action

Fractures, treatments and care Connects structural condition and treatment evidence to permissible handling and intervention.

Emerald care and working decisions depend on fracture geometry and treatment state, not simply on mineral identity or scratch resistance.

Fractures and filling assessment

Maps damage and records the evidence and limits of treatment detection.

Fracture and treatment map

Associates surface-reaching fractures, vulnerable areas and suspected or detected filling with locations on the stone.

Which fractures reach the surface or intersect corners, thin edges or proposed contact points? measurement
What examination supports the presence, type and extent of fracture filling or another treatment, and what could that examination fail to detect? measurement

Intervention and disclosure

Uses the current assessment to constrain care, working and representations about the emerald.

Condition-dependent actions

Records action-specific decisions and the uncertainties that require specialist assessment.

Given mapped fractures and known or uncertain fillers, which proposed cleaning, heating, ultrasonic, solvent, polishing or setting operations require specialist assessment before proceeding? action
Which growth-origin and treatment statements can be disclosed from the evidence, and which claims must remain qualified or unknown? boundary
After an intervention, which images, measurements and treatment observations must be repeated to establish the emerald's new state? action

Evidence and external alignment What the world already says about this thing, gathered so the model can be checked against it.

A model that cannot be lined up against existing standards, identifiers and practice cannot be adopted by anyone who already uses them.