Chemographic exploration of the hyalotekite structure-type
Why this work is in the frame
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Bibliographic record
Abstract
ABSTRACT The hyalotekite group has been approved by the Commission on New Minerals, Nomenclature and Classification of the International Mineralogical Association (memorandum 57–SM/16). The general formula of the minerals of the hyalotekite group may be written as: A 2 B 2 M 2 [Si 8 T 4 O 28 ]W where A = Ba 2+ , Pb 2+ or K + ; B = Ba 2+ , Pb 2+ or K + ; M = Ca 2+ , Y 3+ or REE 3+ ; T = Si 4+ , B 3+ or Be 2+ ; and W = F – or □ (where REE = rare-earth elements and □ = vacancy). Four minerals are currently known in this group: hyalotekite, Ba 4 Ca 2 [Si 8 B 2 (SiB)O 28 ]F, triclinic, I $\bar 1$ ; khvorovite, Pb 2+ 4 Ca 2 [Si 8 B 2 (SiB)O 28 ]F, triclinic I $\bar 1$ ; kapitsaite-(Y), Ba 4 (YCa)[Si 8 B 2 B 2 O 28 ]F, triclinic, I $\bar 1$ ; and itsiite Ba 4 Ca 2 [Si 8 B 4 O 28 ]□, tetragonal, I $\bar 4$ 2 m. We explore the possible end-member compositions within this group by conflating the properties of an end-member with the stoichiometry imposed by the bond topology of the hyalotekite structure-type and the crystal-chemical properties of its known constituents. There are two high-coordination sites in the hyalotekite structure, A and B , and occupancy of each of these sites can be determined only by crystal-structure refinement. If these two sites are considered together, there are 19 end-member compositions of the triclinic structure and six end-member compositions of the tetragonal structure involving A and B = Ba 2+ , Pb 2+ , K + ; M = Ca 2+ , Y 3+ , REE 3+ ; and T = Si 4+ , B 3+ , Be 2+ . There is the possibility for many other hyalotekite-group minerals, and two potential new minerals have been identified from data in the literature.
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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 | 0.001 | 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