Index No: MRTN102900; Collected By: Thomas B. Nolan; Sample Type: hand sample; Notes: Location taken from West End Mine shaft; Much altered wall rock, probably West End Rhyolite seamed by fine-grained quartz in which are local concentrations of dark sulfides. The quartz seams are strikingly controlled by fractures both as to course and width. Seams of ruby silver on the surface.