Lithium in sekaninaite from the type locality, Dolni Bory, Czech Republic (Articolo in rivista)

Type
Label
  • Lithium in sekaninaite from the type locality, Dolni Bory, Czech Republic (Articolo in rivista) (literal)
Anno
  • 1997-01-01T00:00:00+01:00 (literal)
Alternative label
  • Cerny P. 1; Chapman R. 1; Schreyer W. 2; Ottolini L. 3, McCammon C.A. 4 (1997)
    Lithium in sekaninaite from the type locality, Dolni Bory, Czech Republic
    in Canadian mineralogist
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Cerny P. 1; Chapman R. 1; Schreyer W. 2; Ottolini L. 3, McCammon C.A. 4 (literal)
Pagina inizio
  • 167 (literal)
Pagina fine
  • 173 (literal)
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  • 35 (literal)
Rivista
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  • 1 (literal)
Note
  • ISI Web of Science (WOS) (literal)
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  • 1. UNIV MANITOBA,DEPT GEOL SCI,WINNIPEG,MB R3T 2N2,CANADA; 2. RUHR UNIV BOCHUM,INST MINERAL,D-44801 BOCHUM,GERMANY; 3. CNR,CTR STUDIO CRISTALLOCHIM & CRISTALLOG,I-27100 PAVIA,ITALY; 4. UNIV BAYREUTH,BAYER GEOINST,D-95440 BAYREUTH,GERMANY (literal)
Titolo
  • Lithium in sekaninaite from the type locality, Dolni Bory, Czech Republic (literal)
Abstract
  • Abstract: The (Si,Al)-ordered Be end-member of the cordierite group, sekaninaite, from its type locality at Dolni Bory, Czech Republic, was analyzed, and found to contain 0.04 - 0.24 Li and 0.11 - 0.26 Na apfu; (Fe + Mn)/(Mg + Fe + Mn) (at.) ranges from 0.74 to 0.97. Lithium is incorporated by the substitution (NaLi)-Na-ch-Li-VI(Mg,Fe)(-1). This sekaninaite is the first member of the cordierite group reported to have substantial Li but negligible Be. All samples of Na,Be-, Na,Li,Be- and Na,Li-bearing cordierite-sekaninaite examined to date show a minor deficit in the tetrahedral site (0.237 in the literature, 0.036 in our data) and a slight excess of channel cations (Na,K,Ca) over the proportion of (Be,Li) (at.). The Li-bearing sekaninaite comes from rather simple granitic pegmatites, in which the only Li-bearing minerals are rare triphylite and cookeite. Thus cordierite-group minerals are crystal-chemical sinks for Li. This finding stresses the need to analyze for trace light elements, even in minerals from poorly fractionated and rare-element-depleted environments, provided the crystal chemistry is favorable. (literal)
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