ALUMINUM-FOR-IRON SUBSTITUTION, HYDROGEN BONDING, AND A NOVEL STRUCTURE-TYPE IN COQUIMBITE-LIKE MINERALS
Why this work is in the frame
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Bibliographic record
Abstract
A single-crystal XRD study of coquimbite specimens from Vulcano Island, Italy, and from non-volcanic occurrences has confirmed the existence of a marked difference in the occupancy of the metal sites by Fe and Al. For compositions with a 1:1 Al:Fe ratio, a novel structure-type corresponding to the new mineral aluminocoquimbite was found, which demonstrates the different behavior of the Al and Fe in forming such complexes with H 2 O and sulfate ions, respectively. The hydrogen-bond geometry was determined, and a peculiar cyclohexane-like arrangement of the H 2 O molecules that do not coordinate the metal atoms has also been observed.
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Full frame distilled prediction
Teacher imitationNot 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.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.001 | 0.000 |
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.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it