Detail of main panel on one of six levels of STRATAGRAPHIC, mineral installation in spiral staircase, Phelps Dodge Corporation, Phelps Dodge Tower, One Central Avenue,Phoenix, Arizona, 2002. Artists designed and installed arrangement of 14 minerals reflecting the geologic development of copper ores within the earth as well as the stages of their extraction. 
STRATAGRAPHIC, Phelps Dodge Tower, One Central Avenue, view of spiral staircase looking up from 16th floor. Level 17 panels contain porphyry and chalcocite with dark band of cuprite. 
STRATAGRAPHIC, smaller panel on 16th floor of seven-story stairway continuing the same design as main panel on this floor; minerals: porphyry, pyrite and granite. Glass panels are part of railing system which overlooks stairwell. |