La MilitasLas Minitas is indeed interesting, and can be a really big and fat elephant.
While no lab results are available, but PRO says that it encountered 1 to 4% of sulphide for 100 m, 70 m, 12 m, 93 m, and 90 m.(The length is amazing!)
This can be explosive if they are all silver. 1% is about 22 Lb (or 352 oz), 4% is 88 lb (1408 oz).