Mineralpedia Details for Suredaite
Named for the head of the Department of Mineralogy and Economic Geology at the University of Salta in Argentina, Ricardo Jose Sureda Leston. Found only at the type locality at the Oploca Vein System in Jujuy, Argentina where is occurs in layers in symmetrically banded veins in association with sphalerite, arsenopyite, cassiterite, cylindrite, franckeite, hocartite, and other minerals in the silver-tin ore. Suredaite appears as grey-black, opaque radial aggregates of tabular-prismatic or needle-like crystals.
Ref. Minerals and their Localities, Bernard, J.H. and Hyršl, J. (2004)
IMA/CNMNC List of Mineral Names (2009) and American Mineralogist 85 (2000), 1066
Suredaite from Pirquitas Ag-Sn Deposit, Rinconada Dept., Jujuy, Argentina
Suredaite from Oploca mine, Pirquitas, Rinconada Dept., Jujuy, Argentina
Free-formed crystal groups and each has individual crystals to about 4-5mm.