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Record W2151438619 · doi:10.2113/gscanmin.38.6.1419

STRUCTURE REFINEMENT OF BAZZITE FROM PEGMATITIC AND MIAROLITIC OCCURRENCES

2000· article· en· W2151438619 on OpenAlexvenueno aff
Francesco Demartin, C. M. Gramaccioli, T. Pilati

Bibliographic record

VenueThe Canadian Mineralogist · 2000
Typearticle
Languageen
FieldEarth and Planetary Sciences
TopicMineralogy and Gemology Studies
Canadian institutionsnot available
Fundersnot available
KeywordsPegmatiteGeologyGeochemistry

Abstract

fetched live from OpenAlex

The crystal structure of two samples of bazzite, from the Baveno granite, in Piemonte, Italy (type locality, miarolitic occur-rence) and from T0rdal, Norway (pegmatitic occurrence), has been retlned. Compared to material from Alpine fissures, these specimens contain greater amounts of heavy alkali ions (Cs+, Rb+, and K+) in the channels and minor quantities of magnesium in the octahedral positions, in agreement with the results of electron-microprobe analyses. In the channels, the Na+ ions lie at the center of the Si601S rings, i.e., in the Wyckoff position b, whereas H20 and the heavier alkali ions occupy the a position. The possibility of partial substitution of silicon by beryllium, which was inferred for bazzite by some authors on the grounds of chemical analysis, has not been confirmed.

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)0.001
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 score0.028
Threshold uncertainty score0.055

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0000.001
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0010.001
Science and technology studies0.0000.000
Scholarly communication0.0010.000
Open science0.0010.000
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 head0.010
GPT teacher head0.185
Teacher spread0.175 · 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

Citations19
Published2000
Admission routes1
Has abstractyes

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