Skip navigation
  • Home
  • Browse
    • Communities
      & Collections
    • Browse Items by:
    • Publication Date
    • Author
    • Title
    • Subject
    • Department
  • Sign on to:
    • My MacSphere
    • Receive email
      updates
    • Edit Profile


McMaster University Home Page
  1. MacSphere
  2. Open Access Dissertations and Theses Community
  3. Digitized Open Access Dissertations and Theses
Please use this identifier to cite or link to this item: http://hdl.handle.net/11375/20942
Title: Studies Pertaining to the Mineral Chemistry of Sodalite, Nosean and Hauyne
Authors: Peteghem, James
Advisor: Burley, B. J.
Department: Geology
Keywords: mineral;chemistry;sodalite;nosean;hauyne
Publication Date: Sep-1961
Abstract: <p> It is claimed in the literature that there is a close connection between sodalite, nosean, and hauyne in their chemical and crystalle-graphic properties and that they may well be isomorphous (Winchell and Winchell, 1951; Barth, 1933). Close relation between the cancrinites and the sodalite minerals of sodalite itself and nosean and hauyne have been implied (Larsen and Steiger, 1916; 1931, 1944). </p> <p> Mixtures of sodalite, nosean and hauyne were made up and heated at temperatures of 100 degrees Celsius to 750 degrees Celsius at pressures ranging from 10,000 to 30,000 psi. Both nosean and hauyne exhibited polymorphism with a cancrinite type of structure below and a nosean or hauyne structure above approximately 475 degrees celsius. Synthetics products of sodalite composition did not show this structural change. </p> <p> The structure of nosean along the cube diagonal was deduced parallel to the 111 plane (along the triagonal axis) which was compared with the cancrinite strcutre as given by both Pauling (1930B) and Kozn and Takane (1933). A possible mechanism for the polymorphism was deduced from projection drawings and scale models. </p> <p> There was no tendency for the synthetic products of these three minerals to dissociate at any of the temperatures and pressures used in this study. Preformed synthetic or naturally occurring sodalite, on the other hand, did have a tendency to dissociate to nepheline although an actual dissociation curve probably does not exist. More likely the water content is the more dominant factor than temperature or pressure. </p> <p> There appears to be complete solid solution between nosean and hauyne but only partial solid solution between sodalite and nosean, and sodalite and hauyne. </p> <p> The substitution of strontium and barium for sodium and calcium is investigated and discussed. </p>
URI: http://hdl.handle.net/11375/20942
Appears in Collections:Digitized Open Access Dissertations and Theses

Files in This Item:
File Description SizeFormat 
Peteghem_James_K_V_1961Sept_Masters.pdf
Open Access
55.64 MBAdobe PDFView/Open
Show full item record Statistics


Items in MacSphere are protected by copyright, with all rights reserved, unless otherwise indicated.

Sherman Centre for Digital Scholarship     McMaster University Libraries
©2022 McMaster University, 1280 Main Street West, Hamilton, Ontario L8S 4L8 | 905-525-9140 | Contact Us | Terms of Use & Privacy Policy | Feedback

Report Accessibility Issue