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Record W2109875388 · doi:10.2113/gscanmin.41.4.921

THE CRYSTAL STRUCTURE OF ARGENTOJAROSITE, AgFe3(SO4)2(OH)6

2003· article· en· W2109875388 on OpenAlexafffundvenue
Lee A. Groat, J. L. Jambor, B. C. Pemberton

Bibliographic record

VenueThe Canadian Mineralogist · 2003
Typearticle
Languageen
FieldMaterials Science
TopicCrystal Structures and Properties
Canadian institutionsUniversity of British Columbia
FundersNational Research Council CanadaNatural Sciences and Engineering Research Council of CanadaUniversity of British ColumbiaScience and Technology Development Fund
KeywordsCrystallographyGeologyCrystal structureMaterials scienceGeochemistryChemistry

Abstract

fetched live from OpenAlex

Nous avons affine la structure cristalline de l'argentojarosite naturelle, dont la formule ideale est AgFe 3 (SO 4 ) 2 (OH) 6 , a 7.3398(7), c 16.538(3) A, V 771.4(2) A 3 , groupe spatial R3m, Z= 3, jusqu'a un residu R 1 de 2.8% sur une base de 307 reflexions uniques mesurees avec rayonnement MoKa et un diffractometre automatise a quatre cercles. Le taux d'occupation du site A indique qu'il est completement rempli par les atomes Ag, avec des longueurs de liaison Ag-O et Ag-OH de 2.963 et 2.721 A, respectivement, et un volume icosaedrique du polyedre AgO 6 (OH) 6 de 57.71 A 3 . Tandis que l'Ag + dans l'argentojarosite est sense avoir une coordinence de 12, et par consequent un rayon ionique entre 1.48 et 1.56 A, nos resultats font penser que le rayon ionique est plutot 1.35-1.36 A, plus pres de la valeur attendue pour une coordinence de neuf. Par consequent, la sphere de coordinence de l'Ag + dans l'argentojarosite serait probablement intermediaire entre six et douze. Une coordinence de 12 n'est pas etablie pour l'argent dans d'autres mineraux, et il y a de fortes chances que les courbes publiees pour evaluer les valences de liaison ne s'appliquent pas a cette coordinence de l'argent.

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.

How this classification was reachedexpand

Full frame machine prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.000
Version: metacan-v3-hybrid-931329e0061cValidation status: machine_predicted_unvalidated
Candidate categoriesnone
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 score0.004
Threshold uncertainty score0.008

Distilled classifier scores by category (both heads)

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)0.0020.000

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 head0.013
GPT teacher head0.210
Teacher spread0.197 · 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

Classification

machine, unvalidated

Machine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.

The models applied no category: nothing in the taxonomy fit this work.
Study designBench or experimental
Domainnot available
GenreEmpirical

How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".

Quick stats

Citations29
Published2003
Admission routes3
Has abstractyes

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