Index No: NBM051900; Collected By: ; Sample Type: hand sample; Notes: Dump grab sample of strongly silicified, felsic/intermediate? volcanic. Strong acid leaching surrounds shaft/mineralized area. 1-3% pyrite(?) as small blebs. Sample collected is rubble/shatter zone cemented with silica and alunite and other clays. Fragments <<1% sulfide. Most of the sulfide occurs as granular blebs on fragment surfaces and in matrix. Weak Fe oxides - strong sulfate (gypsum) on dumps. -Calloway, 4/26/95