Ferrierite-NH4, (NH4,Mg0.5)5(Al5Si31O72)·22H2O, A New Zeolite from Northern Bohemia, Czech Republic
Bibliographic record
Abstract
Research Article| January 01, 2019 Ferrierite-NH4, (NH4,Mg0.5)5(Al5Si31O72)·22H2O, A New Zeolite from Northern Bohemia, Czech Republic Nikita V. Chukanov; Nikita V. Chukanov § Faculty of Geology, Moscow State University, Leninskie Gory, Moscow, 119991, RussiaInstitute of Problems of Chemical Physics, Russian Academy of Sciences, Chernogolovka, Moscow Region, 142432, Russia § Corresponding author e-mail address: chukanov@icp.ac.ru Search for other works by this author on: GSW Google Scholar Igor V. Pekov; Igor V. Pekov Faculty of Geology, Moscow State University, Vorobievy Gory, Moscow, 119991, Russia Search for other works by this author on: GSW Google Scholar Jiří Sejkora; Jiří Sejkora Department of Mineralogy and Petrology, National Museum, Cirkusová 1740, 193 00 Praha 9, Czech Republic Search for other works by this author on: GSW Google Scholar Jakub Pláš il; Jakub Pláš il Institute of Physics, Academy of Sciences of the Czech Republic v.v.i, Na Slovance 2, 182 21 Prague 8, Czech Republic Search for other works by this author on: GSW Google Scholar Dmitriy I. Belakovskiy; Dmitriy I. Belakovskiy Fersman Mineralogical Museum of Russian Academy of Sciences, Leninskiy Prospekt 18-2, Moscow, 119071, Russia Search for other works by this author on: GSW Google Scholar Sergey N. Britvin Sergey N. Britvin Department of Crystallography, Saint Petersburg State University, University Embankment 7/9, 199034 Saint Petersburg, Russia Search for other works by this author on: GSW Google Scholar Author and Article Information Nikita V. Chukanov § Faculty of Geology, Moscow State University, Leninskie Gory, Moscow, 119991, RussiaInstitute of Problems of Chemical Physics, Russian Academy of Sciences, Chernogolovka, Moscow Region, 142432, Russia Igor V. Pekov Faculty of Geology, Moscow State University, Vorobievy Gory, Moscow, 119991, Russia Jiří Sejkora Department of Mineralogy and Petrology, National Museum, Cirkusová 1740, 193 00 Praha 9, Czech Republic Jakub Pláš il Institute of Physics, Academy of Sciences of the Czech Republic v.v.i, Na Slovance 2, 182 21 Prague 8, Czech Republic Dmitriy I. Belakovskiy Fersman Mineralogical Museum of Russian Academy of Sciences, Leninskiy Prospekt 18-2, Moscow, 119071, Russia Sergey N. Britvin Department of Crystallography, Saint Petersburg State University, University Embankment 7/9, 199034 Saint Petersburg, Russia § Corresponding author e-mail address: chukanov@icp.ac.ru Publisher: Mineralogical Association of Canada First Online: 20 Feb 2019 Online Issn: 1499-1276 Print Issn: 0008-4476 © 2019 Mineralogical Association of Canada The Canadian Mineralogist (2019) 57 (1): 81–90. https://doi.org/10.3749/canmin.1800057 Article history First Online: 20 Feb 2019 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn MailTo Tools Icon Tools Get Permissions Search Site Citation Nikita V. Chukanov, Igor V. Pekov, Jiří Sejkora, Jakub Pláš il, Dmitriy I. Belakovskiy, Sergey N. Britvin; Ferrierite-NH4, (NH4,Mg0.5)5(Al5Si31O72)·22H2O, A New Zeolite from Northern Bohemia, Czech Republic. The Canadian Mineralogist 2019;; 57 (1): 81–90. doi: https://doi.org/10.3749/canmin.1800057 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentBy SocietyThe Canadian Mineralogist Search Advanced Search Abstract The new zeolite ferrierite-NH4, ideally (NH4,Mg0.5)5(Al5Si31O72)·22H2O, was discovered in open pits at Libouš and Bílína in the Miocene Most Basin, which is situated in the Czech Republic. The associated minerals are calcite, siderite, whewellite, quartz, opal, baryte, and clay minerals (at Libouš) and marcasite, pyrite, baryte, sphalerite, and gypsum (at Bílína). Ferrierite-NH4 forms white radiating aggregates up to 2 mm across consisting of thin flattened prismatic crystals. Density calculated from the empirical formula is 2.154 g/cm3. Ferrierite-NH4 is optically biaxial, positive, α = 1.518(2), β = 1.520(2), γ = 1.522(2) (λ = 589 nm). The IR spectrum shows the presence of the NH4+ cation. The chemical composition of the holotype sample is (wt.%; electron microprobe, H and N analyzed by gas chromatography of products of ignition): (NH4)2O 2.7, Na2O 0.24, MgO 1.63, Al2O3 10.48, SiO2 69.44, H2O 14.8, total 99.29. The empirical formula based on 36 Si+Al pfu is H0.35[(NH4)2.74Mg1.07Na0.21](Al5.44Si30.56O72)·21.55H2O. Ferrierite-NH4 is orthorhombic, space group Immm, with a 19.10(1) Å, b 14.15(1) Å, c 7.489(3) Å, V 2024(3) Å3, and Z = 1. The strongest lines of the powder X-ray diffraction pattern [d, Å (I, %) (hkl)] are: 9.52 (97) (200), 6.95 (28) (101), 6.60 (19) (011), 3.988 (61) (321, 031, 420), 3.784 (19) (330), 3.547 (73) (112, 040), 3.482 (100) (202), 3.143 (37) (141, 312). You do not have access to this content, please speak to your institutional administrator if you feel you should have access.
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.
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 | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.001 | 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 | 0.002 | 0.000 |
| Research integrity | 0.000 | 0.001 |
| Insufficient payload (model declined to judge) | 0.014 | 0.002 |
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; both teacher heads agree on what is shown here.
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".