gismondine-Ca
Enable an agent to identify gismondine-Ca, assess the composition and condition of a specimen, and select justified analytical, preservation or experimental actions.
Bundle → Layer → Finding → Questions Filled
6 bundles · 11 layers · 17 findings · 27 questions
Species and framework identity Establish what evidence warrants assigning the registered gismondine-Ca identity.
Name and species boundary
Connect the registry name to authoritative mineral nomenclature and historical records.
Documented calcium species assignment
Record the nomenclature reference and the evidence supporting application of the Ca designation to the specimen.
- Which authoritative nomenclature record defines gismondine-Ca and its relationship to historical records labelled gismondine? definition
- Which chemical and structural criteria distinguish this specimen from gismondine-Sr or another related phase? boundary
Diffraction confirmation
Assess structural evidence independently of appearance and locality.
Reference pattern agreement
Document the reference structure, measurement conditions and unexplained reflections used in identification.
- Which measured reflections and refined structural parameters support gismondine-Ca? measurement
- Could another GIS phase, intergrowth or mixed powder explain the observed pattern? boundary
Framework and cation chemistry Characterise framework composition and the cations associated with the identified phase.
Framework stoichiometry
Evaluate Si and Al analyses on a reproducible formula basis.
Normalised framework analysis
Retain measured chemistry, formula normalisation and analytical limitations rather than forcing an ideal composition.
- What Si:Al ratio is measured, and which oxygen basis is used to calculate the formula? measurement
- Do analytical totals or repeated measurements indicate beam damage, contamination or an unsuitable normalisation? measurement
Cation distribution
Resolve calcium and competing cations within and between grains.
Calcium assignment and heterogeneity
Record cation proportions, charge-balance assessment and spatial variability relevant to species assignment.
- What Ca, Sr, Ba, Na and K contents occur in the structurally identified grains? measurement
- Do zoning or separate domains require distinct analytical records or an unresolved species assignment? boundary
Hydration and structural state Track water content and structural response to environmental or experimental treatment.
Water inventory
Separate measured water content from assumed formula water and extraneous moisture.
Conditioned water measurement
Associate water measurements with equilibration, sample purity and the method used to attribute mass loss.
- What water content is measured after which temperature and relative-humidity conditioning? measurement
- How are framework-associated water, surface moisture and water from accompanying phases distinguished? boundary
Treatment response
Determine whether drying, heating or rehydration preserves the identified phase.
Hydration cycle integrity
Compare structural and water-content evidence before and after a specified treatment without presuming reversibility.
- At what tested conditions do diffraction, mass or crystallinity change? measurement
- Does reconditioning restore the initial state, or should the material be recorded as a transformed derivative? boundary
Occurrence and phase purity Connect specimen origin, mineral associations and the fraction actually measured.
Occurrence evidence
Preserve locality and host-material observations without treating them as proof of identity.
Traceable mineral occurrence
Link the analysed material to collection records and observed relationships with neighbouring phases.
- Which locality, host material and collection record belong to this specimen? provenance
- Which observations establish its relationship to associated minerals rather than merely reporting co-occurrence? provenance
Representative phase isolation
Assess whether isolated grains or bulk fractions support the intended measurement.
Quantified mixture contribution
Record phase abundance, intergrowths and residual contamination relevant to attributing a result.
- What fraction of the analysed material is identified gismondine-Ca, and with what detection limits? measurement
- Which separation or grain-selection procedure would improve attribution without changing the mineral's state? action
Preservation and experimental use Translate specimen evidence into justified handling and research decisions.
Specimen preservation
Select preparation and storage conditions using the specimen's documented response.
State-preserving handling
Record the effects of grinding, vacuum, heating and cleaning, together with sample-specific handling information.
- Which proposed preparation steps could change hydration, cation composition or diffraction, and how will that change be checked? action
- What documented handling constraints arise from this specimen's particle form, associated phases and supplier information? action
Exchange and sorption evidence
Evaluate experimental behaviour without transferring performance claims from other zeolites.
Phase-specific functional result
Require measured conditions and post-experiment characterisation before attributing exchange or sorption behaviour to gismondine-Ca.
- What uptake or ion-release result is measured at which solution composition, pH, temperature, duration and solid-to-liquid ratio? measurement
- Do post-experiment chemistry and diffraction support exchange or sorption rather than dissolution, precipitation or contributions from impurities? boundary
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 gismondine-Ca 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 gismondine-Ca this model covers, and on what evidence? provenance
Standards and regulation
Recalled without web access and unsourced; every item is a lead to verify.
- Which of these standards and regulation hold for the sense of gismondine-Ca 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 gismondine-Ca 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 gismondine-Ca 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 gismondine-Ca 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 gismondine-Ca 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
Gismondine-Ca is a calcium-dominant zeolite mineral with ideal composition CaAl2Si2O8·4H2O, consisting of an aluminosilicate framework whose cavities contain calcium ions and water.
In scope
- Species identification through combined framework and chemical evidence
- Framework composition, extra-framework cations and measured water content
- Crystallinity, hydration state and treatment-induced changes
- Phase purity, intergrowths and sampling representativeness
- Specimen provenance and suitability for analysis or controlled experiments
Out of scope
- The complete taxonomy of zeolites and GIS framework materials
- Separate species models for gismondine-Sr, amicite, garronite and gobbinsite
- The host rock, deposit or geological formation as a whole
- Commercial adsorbent formulations and treatment equipment
- Synthesis processes and laboratory instruments
- Jurisdiction-wide chemical regulation and workplace exposure management
Why it exists Filled
Enable an agent to identify gismondine-Ca, assess the composition and condition of a specimen, and select justified analytical, preservation or experimental actions.
Distinguishing features Filled
- Require diffraction evidence compatible with gismondine-Ca together with supporting chemistry; a GIS framework assignment alone does not establish the species.
- Measure Ca, Sr, Ba, Na and K in the identified phase to test the calcium assignment and distinguish competing cation compositions.
- Use framework Si:Al near 1:1 as supporting evidence when comparing with more silica-rich GIS zeolites; this ratio alone does not distinguish gismondine-Ca from amicite or gismondine-Sr. These relationships are discussed in [Skrzyńska et al., 2023](https://www.cambridge.org/core/journals/mineralogical-magazine/issue/F7062CFF8EE8CA258B231D0C9807828D).
- Compare structure and composition on the same grain or demonstrably equivalent fraction, preventing calcium-rich matrix material from creating a false identification.
- Establish whether a candidate is a natural mineral specimen, a synthetic structural analogue or a treated derivative before transferring the species name.
What robots and AI may and may not do Filled
Must not
- Label a zeolite as gismondine-Ca without chemical analysis.
- Recommend heating or acid treatment that destroys a specimen.
- Invent or alter a specimen's locality.
- Collect from protected volcanic sites without permission.
Only with a human decision
- Destructive testing of a rare specimen.
- Collecting from land without the owner's permission.
May
- Identify a specimen as gismondine-Ca from documented analysis and setting.
- Explain how it differs from other gismondine-group zeolites using analytical data.
Moral aspects Filled
- Mineral names carry scientific meaning, and misidentification corrupts records.
- Collecting can damage protected geological sites.
Who is affected
- Researchers
- Collectors
- Site owners
Owners Filled
Steward
The collector or museum that holds the specimen.
Master systems
- Museum mineral collection catalogues
- Mineral species databases
Links to other meta-models Filled
parent
- Q109301485 - registry parent class
What else AI and robots need to interact with it Filled
Identity and identifiers required Filled
- Vercy registry: vr.tr.gismondine-ca
- Wikidata: Q2048382 (https://www.wikidata.org/wiki/Q2048382)
Direct properties required Filled
- Identification confidence: provisional; chemically supported; structurally supported; jointly supported; unresolved
- Framework composition: Si and Al atoms per stated oxygen basis; atomic Si:Al ratio; analytical uncertainty
- Extra-framework cation composition: Ca, Sr, Ba, Na and K atoms per formula unit on an explicit normalisation basis
- Diffraction and structural assignment: reference pattern or structure identifier; framework assignment; symmetry setting; fit assessment
- Water content: mass percent H2O and H2O per normalised formula, with temperature, humidity and method
- Phase abundance: mass percent with uncertainty and detection limits; unknown when unmeasured
- Treatment and preservation state: as collected; humidity conditioned; heated; solution exposed; ground; altered; history unknown
- Occurrence and specimen linkage: specimen identifier linked to locality, host material, associated phases and analysed subsample
Recognition required Filled
- Colourless to white pseudo-octahedral crystals in cavities of volcanic rocks.
- Glassy lustre; can lose water and turn cloudy.
- Calcium dominance is settled only by chemical analysis.
Capabilities and actions required Filled
- Compare a candidate's diffraction and grain chemistry with documented gismondine-Ca references.
- Select representative grains or fractions while recording matrix and intergrowth contamination.
- Condition and measure hydration while tracking temperature, humidity and structural response.
- Evaluate whether ion-exchange or sorption experiments preserve the identified starting phase.
- Choose storage and analytical preparation from observed specimen sensitivity.
- Flag unsupported species assignments, purity claims or transferred zeolite performance values.
Hazards and failure modes required Filled
- Dehydration and cracking of specimens in dry or warm storage.
- Confusion with other zeolites of similar form.
Standards and interfaces required Filled
- Mineral nomenclature approved by the Commission on New Minerals, Nomenclature and Classification, International Mineralogical Association.
Context of use required Filled
- Gismondine-Ca is encountered in mineral collections and geological studies of zeolite-bearing rocks, including cavities in altered volcanic rocks.
- It is studied to understand mineral formation, aluminosilicate framework structures and the behavior of water and calcium within zeolite cavities.
Sources Filled
- Wikidata item Q2048382: gismondine-Ca - identity and sense of the item
- Wikipedia: Gismondine - general description of the item
Open questions
- Which current authoritative nomenclature criteria resolve Ca/Sr/Ba-rich boundary compositions and historical gismondine labels?
- How should differing published water stoichiometries be reconciled with formula normalisation, measurement conditions and specimen variability?
- Which reference diffraction datasets and diagnostic features most reliably separate gismondine-Ca from closely related GIS phases in mixtures?
- What experimentally established dehydration, rehydration and structural-transformation limits apply to compositionally characterised gismondine-Ca?
- Which chemical identifiers, hazard records and exchange or sorption measurements are demonstrably specific to gismondine-Ca rather than generic zeolites or commercial mixtures?
Machine files
Provenance
thing registry research (pass 2) · unreviewed
Built from: models/things/publications/thing-q2048382/spec.json