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Description: Ringin Putih district is located in the Southern Mountain Part of East Java. This area shows the epithermal system indication which is a part of the Early Cretaceous tectonic evolution of the Sunda-Banda arc. The lithologies of the Ringin Putih area are dominated by an andesitic-basaltic lava, tuff, clay, and pyroclastic rocks. The mineralization indications are characterized by the copper mineralization and the presence of ubiquitous sulphide minerals. Petrography, mineralogy, X-Ray Diffraction (XRD) analysis was conducted in order to obtain the basic data for the mineralization and alteration properties. The indication of quartz-feldspar-actinolite (?)-epidote-chlorite, often with magnetite facies, indicates that the sample represent propylitic alteration, that is caused by the iron and the sulfur-bearing hydrothermal fluids; whilst the pyrophyllite-quartz-sericite-illite is correspond with the illite-kaolinite group minerals, and represent the phyllic alteration. Pyrophyllite-rutile are tend to be formed in the acidic environments and the oxidized fluids; while the smectite-illite-chlorite-epidote-biotite were formed in the near-neutral pH and reduced fluids. The transition from the acidic-oxidized fluids into the near neutral-reduced fluid gives the preliminary indication of fluids from the great depth and fluids from the near surface water.