Ronpetersonite, BaWO4, the Barium Analogue of Scheelite, a New Mineral from the Gun Occurrence in the Yukon, Canada
Bibliographic record
Abstract
Abstract Ronpetersonite, BaWO4, is a new mineral from the Gun occurrence in the Yukon, Canada, where it is found in aggregates up to 500 µm in diameter in a groundmass comprised of witherite, cerchiaraite-(Al), and edingtonite. Grains of ronpetersonite are heavily included and anhedral. Crystals are colorless and transparent with a vitreous luster and white streak. Fracture and cleavage could not be determined. The calculated density is 6.363 g/cm3 based on the empirical formula. The empirical formula calculated on the basis of electron probe microanalysis (n = 11) is Ba1.00W1.00O4. Ronpetersonite is tetragonal, I41/a (space group 88), a = 5.6192(4) Å, b = 5.6192(4) Å, c = 12.7348(11) Å, α = 90.0(0)°, β = 90.0(0)°, γ = 90.0(0)°, V = 402.11(6) Å3, Z = 4. The crystal structure [R1 = 1.2% for 400 reflections with Fo > 4σ(Fo) and R1 = 1.8% for all 491 unique reflections] shows ronpetersonite to be the Ba-analogue of scheelite. The mineral is named in honor of Emeritus Professor Dr. Ronald C. Peterson of Queen’s University for his important contributions to mineralogy, especially the mineralogy of mine wastes, sulfate minerals, and the mineralogy of Mars.
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How this classification was reachedexpand
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 | 0.001 | 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 | 0.001 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.000 | 0.001 |
| Insufficient payload (model declined to judge) | 0.000 | 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 itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, not a consensus.
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".