Quick
Search: 		  
advanced search
 GSW Home   GeoRef Home   My GSW Alerts   Contact GSW   About GSW   Journals List   Help 
American Mineralogist Email Content Delivery
JOURNAL HOME HELP CONTACT PUBLISHER SUBSCRIBE ARCHIVE SEARCH TABLE OF CONTENTS
American Mineralogist; October 1983; v. 68; no. 9-10; p. 951-959
This Article
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Right arrow Order Hardcopy of Full Text via AGI/GeoRef
Citing Articles
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Winter, G. A.
Right arrow Articles by Peacor, D. R.
Right arrow Search for Related Content
GeoRef
Right arrow GeoRef Citation

Mn-humites from Bald Knob, North Carolina; mineralogy and phase equilibria

G. A. Winter, Eric J. Essene, and Donald R. Peacor

TVA, Casper, WY, United States

Alleghanyite, manganhumite and sonolite (the manganese analogues of chondrodite, humite and clinohumite). They are close to end-member Mn minerals in terms of cations but have about 25-30% of hydroxyl replaced by fluorine. Observed partitioning suggests that minor-element substitution does not stabilize one manganese humite relative to another. Qualitative phase equilibria suggest that these assemblages require water-rich conditions to form in silica-undersaturated rocks during regional metamorphism and that variations in XH 2 O/(XH 2 O + XCO 2 ) may account for their formation.--Modified journal abstract.

This record provided courtesy of AGI/GeoRef.






JOURNAL HOME HELP CONTACT PUBLISHER SUBSCRIBE ARCHIVE SEARCH TABLE OF CONTENTS
Copyright © 2008 by Mineralogical Society of America