Oxy-schorl, Na(Fe2+2Al)Al6Si6O18(BO3)3(OH)3O, a new mineral from Zlata Idka, Slovak Republic and Pribyslavice, Czech Republic
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Bibliographic record
Abstract
Oxy-schorl, Na(Fe.sup.2+./sup..sub.2./sub.Al)Al.sub.6./sub.Si.sub.6./sub.O.sub.18./sub.(BO.sub.3./sub.).sub.3./sub.(OH).sub.3./sub.O, is a new mineral species of the tourmaline group and it was found on two localities – Přibyslavice, Czech Republic and co-type locality Zlatá Idka, Slovak Republic. Oxy-schorl from Přibyslavice occurs in a foliated muscovite-tourmaline orthogneiss with associated minerals including K-feldspar (orthoclase-perthite), albite, quartz, muscovite, biotite, apatite and garnet. Oxy-schorl from Zlatá Idka occurs in extensively metasomatically altered Silurian metarhyolite pyroclastics with muscovite, quartz, and albite. Oxy-schorl from Přibyslavice forms abundant brownish black subhedral, columnar crystals, up to 1 cm in size, arranged in thin layers, or irregular clusters up to 5 cm in diameter in muscovite-tourmaline orthogneiss. Oxy-schorl from Zlatá Idka forms fan-shaped aggregates of greenish black acicular crystals ranging up to 2 cm in size, with aggregates up to 3.5 cm across. Oxy-schorl has a brown (Přibyslavice) to pale grey (Zlatá Idka) streak. Oxy-schorl from both localities is brittle and has a Mohs hardness of ca 7. It has no observable cleavage and parting. Oxy-schorl has a measured density of 3.19 g/cm (Přibyslavice) and 3.17 g/cm (Zlatá Idka) using pycnometry and calculated density of 3.198 g/cm (Přibyslavice), 3.208 g/cm (Zlatá Idka) using empirical formulae and separate unit cell data. In plane polarized light, it is pleochroic, O = dark greyish-green (Přibyslavice) and green to bluish-green (Zlatá Idka), E = pale brown (Přibyslavice) and pale yellowish to nearly colorless (Zlatá Idka). Oxy-schorl is uniaxial negative. Oxy-schorl is trigonal, space group R3m, a = 15.9853(12) Å, c = 7.1538(6) Å, V = 1583.1(2) Å3, Z = 3.
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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) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.000 | 0.001 |
| Science and technology studies | 0.000 | 0.001 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.004 | 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