Crystal Chemistry of Selected Sb, As, and P Minerals
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azu_etd_1387_sip1_m.pdf
Issue Date
2005Advisor
Downs, Robert TCommittee Chair
Downs, Robert TMetadata
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The University of Arizona.Rights
Copyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.Abstract
The crystal structures of the related minerals triploidite (Mn2PO4OH) and zwieselite (Fe2PO4OH) are discussed. Order-disorder of OH- and F- in these structures is discussed using the results of new crystal structure refinements, and correlation with the results of Raman spectroscopic study in the hydroxyl stretching region. Cryogenic crystal structure refinement of triploidite allowed the distinction of separate OH- and F- sites in the mineral.A new mineral, natural AsSbO3, has been found at Tsumeb, Namibia. Its occurrence has implications on the closing stage of ore formation at this mine. The crystal structure has been solved, and shown to have long range As-O and Sb-O bonding using electron density distributions from quantum calculations.Type
textElectronic Dissertation
Degree Name
PhDDegree Level
doctoralDegree Program
GeosciencesGraduate College