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Optical Properties and Chemical Compositions of Apollo 17 Armalcolites

1974; Geological Society of America; Volume: 2; Issue: 1 Linguagem: Inglês

10.1130/0091-7613(1974)2 2.0.co;2

1943-2682

Kenneth Williams, L. A. Taylor,

Mineralogy and Gemology Studies

Research Article| January 01, 1974 Optical Properties and Chemical Compositions of Apollo 17 Armalcolites Kenneth L. Williams; Kenneth L. Williams 1Department of Applied Earth Sciences, Stanford University, Stanford, California 94305 Search for other works by this author on: GSW Google Scholar Lawrence A. Taylor Lawrence A. Taylor 2Department of Geology, University of Tennessee, Knoxville, Tennessee 37916 Search for other works by this author on: GSW Google Scholar Author and Article Information Kenneth L. Williams 1Department of Applied Earth Sciences, Stanford University, Stanford, California 94305 Lawrence A. Taylor 2Department of Geology, University of Tennessee, Knoxville, Tennessee 37916 Publisher: Geological Society of America First Online: 02 Jun 2017 Online ISSN: 1943-2682 Print ISSN: 0091-7613 Geological Society of America Geology (1974) 2 (1): 5–8. https://doi.org/10.1130/0091-7613(1974)2 2.0.CO;2 Article history First Online: 02 Jun 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn Email Permissions Search Site Citation Kenneth L. Williams, Lawrence A. Taylor; Optical Properties and Chemical Compositions of Apollo 17 Armalcolites. Geology 1974;; 2 (1): 5–8. doi: https://doi.org/10.1130/0091-7613(1974)2 2.0.CO;2 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 SocietyGeology Search Advanced Search Abstract Armalcolite present in Apollo 17 samples 74242 and 75082 displays textures which Haggerty (1973a) used as criteria for distinguishing two distinct varieties—ortho-armalcolite and para-armalcolite. Reflectivity measurements and microprobe analyses were performed on numerous grains of both “varieties” of armalcolite present in these specimens. No major differences in optical properties and no consistent compositional variations were found in these armalcolites. Therefore, the need for distinguishing two “varieties” of armalcolite, whose only major difference appears to be their paragenesis, is unnecessary and unjustified. This content is PDF only. Please click on the PDF icon to access. First Page Preview Close Modal You do not have access to this content, please speak to your institutional administrator if you feel you should have access.