In an ejected volcanic block. Cancrinite-sodalite group; structure discussed.
IMA Status:
Approved IMA 2003 (Dana # Added)
Locality:
Sacrofano, Biacchella Valley, Latium, Italy Link to MinDat.org Location Data.
Name Origin:
Named for Giorgio Marinelli (1922-1993), Professor, Department of Earth Sciences, University of Pisa, specialist in magma genesis and tectonic settings.