Near- and Mid Infrared Spectroscopy of the Lithium-Bearing Amphibole Holmquistite from Barraute, Canada
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Bibliographic record
Abstract
The mid- and near infrared spectra of holmquistite, a lithium-containing orthorhombic amphibole, from Barraute (Quebec, Canada) has been measured. The OH stretching region is characterised by bands around 3660, 3645, 3629 and 3613 cm −1 assigned to (3Mg)–OH, (2Mg + Fe 2+ )–OH, (Mg + 2Fe 2+ )–OH and (3Fe 2+ )–OH, respectively. Based on the ratio between the 3645 and 3660 cm −1 bands Fe 2+ /(Fe 2+ + Mg 2+ ) ratios in the M 1 and M 3 sites were determined to be in the range between 0.3 (mid infrared) and 0.4 (Raman). In the near infrared region, two times four bands were observed associated with the four possible combination modes of the four M–OH stretching and bending modes around 4029, 4193, 4323 and 4400 cm −1 and with the four overtones of M–OH stretching modes around 7055, 7091, 7123 and 7155 cm −1 .
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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) | 0.001 | 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