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Record W1981698852 · doi:10.2138/am.2013.4293

Oxy-schorl, Na(Fe2+2Al)Al6Si6O18(BO3)3(OH)3O, a new mineral from Zlata Idka, Slovak Republic and Pribyslavice, Czech Republic

2013· article· en· W1981698852 on OpenAlex

Why this work is in the frame

A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.

affAt least one author lists a Canadian institution in the pinned OpenAlex snapshot.

Bibliographic record

VenueAmerican Mineralogist · 2013
Typearticle
Languageen
FieldMaterials Science
TopicCrystal Structures and Properties
Canadian institutionsUniversity of British Columbia
FundersAgentúra na Podporu Výskumu a Vývoja
KeywordsPleochroismTourmalineAcicularChemistryCrystallographyTrigonal crystal systemMineralogyGeologyCrystal structureGeochemistry

Abstract

fetched live from OpenAlex

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.

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

Full frame distilled prediction

Teacher imitation

Not 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.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesMeta-epidemiology (narrow), Scholarly communication, Insufficient payload (model declined to judge)
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Bench or experimental · Consensus signal: none
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.760
Threshold uncertainty score1.000

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0010.000
Meta-epidemiology (broad)0.0010.000
Bibliometrics0.0000.001
Science and technology studies0.0000.001
Scholarly communication0.0010.001
Open science0.0010.001
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0040.000

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.

Opus teacher head0.014
GPT teacher head0.233
Teacher spread0.219 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it