 | | Journal (article/letter/editorial) | | EUR' SC H OICE ROBERT B. COOK Department of Geology and Geography Auburn University Auburn, Alabama 36849-5305...University] at 07:53 01 January 2015 Bournonite Yaogangxian Mine, Chenzhou, Hunan Province, China T ...the quality and sophistication of whatever collection they are viewing. The number, size, and perfection...rhodochrosite, and azurite coupled with their localities can be used to gauge dollars spent and perhaps the...typically elevated price, elude most collectors and yet can be the very hallmark by which a collection |  | | Report (issue) | | Mineralogic and Grade-Tonnage Information on Low-Sulfide Au-Quartz Veins by James D. Bliss and Gail M....preliminary and has not been reviewed for conformity with U.S. Geological Survey editorial standards and stratigraphic........................................ 1 Grade and tonnage models........................................................... 3 Frequency, abundance and grouping of sulfides................. 4 Non-sulfides........ 81 INTRODUCTION Data on grade, tonnages and mineralogy of deposits classifed as lowsulfide Au-quartz |  | | Journal (article/letter/editorial) | | SYSTEM: PHASE RELATIONS APPLICATIONS LLOYD AND • A. CLARK CONTENTS PART II PAGE Problemsof...combinedto give bulk compositions equivalentto FeAsS and to many other bulk compositionsas well. The products...the runs listed 8th and 9th in Table 15), grind its contentsunder acetone, 4ø and then re-heat. After...theywere easilyseparated whenthe tubewasquenched and opened. In the run listed 11th in Table 15, FeAs2...C.) In this case,no metastable pyrrhotiteformed,and pure arsenopyritewas obtainedafter a singleheating |
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