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Record W2054734945 · doi:10.2113/gscanmin.38.3.751

TOPOLOGICAL ENUMERATION OF DECORATED [Cu2+ 2]N SHEETS IN HYDROXY-HYDRATED COPPER-OXYSALT MINERALS

2000· article· en· W2054734945 on OpenAlex

Why this work is in the frame

A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.

affAt least one author lists a Canadian institution in the pinned OpenAlex snapshot.
fundA Canadian funder is recorded on the work.
venuePublished in a venue whose home country is Canada.

Bibliographic record

VenueThe Canadian Mineralogist · 2000
Typearticle
Languageen
FieldMaterials Science
TopicCrystal Structures and Properties
Canadian institutionsUniversity of Manitoba
FundersNatural Sciences and Engineering Research Council of Canada
KeywordsEnumerationCopperTopology (electrical circuits)Materials scienceCrystallographyChemistryMineralogyMathematicsCombinatoricsMetallurgy

Abstract

fetched live from OpenAlex

Many hydroxy-(hydrated) Cu 2+ oxysalt minerals, particularly Cu 2+ sulfates, are based on structural units that are variants of the [ M ϕ 2 ] N sheets of edge-sharing octahedra, where M is an octahedrally coordinated cation (including vacancies) and ϕ is an anion. Where ϕ = O 2− ,OH,Cl,H 2 O, the sheet can be considered as a simple sheet; where ϕ = (SO 4 ) 2− , the sheet may be considered as a decorated sheet. In such structures, Cu 2+ ϕ 6 octahedra show strong axial elongation; Cu 2+ –ϕ(equatorial) bonds have a bond-valence of ~0.42 vu , and Cu 2+ –ϕ(apical) bonds have a bond-valence of ~0.17 vu. Local bond-valence requirements dictate that an (SO 4 ) 2− group can only link to a [Cu 2+ ϕ 2 ] N sheet if three Cu 2+ –ϕ(apical) bonds are incident to the linking anion. This constraint provides considerable restrictions on possible structural arrangements with small unit-cells ( 2+ atoms/plane). These may be derived by two-coloring the 6 3 net. There are currently 20 minerals known that correspond to this structural theme, and it is almost certain that many others await discovery.

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

Full frame distilled prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesInsufficient payload (model declined to judge)
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Bench or experimental · Consensus signal: Bench or experimental
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.507
Threshold uncertainty score0.992

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.000
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0000.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0090.000

Machine scores (provisional)

The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.

Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.

Opus teacher head0.017
GPT teacher head0.231
Teacher spread0.214 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it