Suredaite Locality: Pirquitas Ag-Sn Deposit, Rinconada Department, Jujuy , Argentina ( Locality at mindat.org ) Size: small cabinet, 7.3 x 6.4 x 3.5 cm SUREDAITE ex. Dr. Werner Paar Collection A large ore matrix hosts here a cavity 1 cm across with sharp crystals, to about 2mm. This Pb-Sn-S mineral, similar in overall appearance with teallite, is a unique — Photo: Robert M. Lavinsky · CC BY-SA 3.0
Suredaite
Suredaite is an IMA-recognized mineral species in the sulfide class, with the chemical formula PbSnS₃.
It crystallizes in the orthorhombic crystal system (space group Pnma).
Key properties: Mohs hardness 2.5–3; specific gravity 5.54–5.88; Dark gray streak; Metallic luster.
IMA symbol Su, IMA status: approved, named in 1997.
Found in a symmetrical banded, hydrothermal vein Ag-Sn deposit.
It is found associated with Sphalerite, arsenopyrite, pyrite-marcasite, cassiterite, cylindrite, franckeite, hocartite, rhodostannite.
The mineral was named to honor Ricardo Sureda Leston, head of the Department of Mineralogy and Economic Geology, University of Salta, Argentina.