2011). This may aid for better layout design. The processing plant layout design is also a function of early ore test works. A diagnostic approach which use standard tests and optimization procedures for the particular ore is explained in a gold plant design study (Torres, 1999). As explained so far, the flexible layout design and optimization Blackrock Designs is an employee-owned engineering firm with combined commodity experience in base, precious metals industrial minerals with offices in Tucson, Chandler Arizona and Hermosillo, Sonora, Mexico. Blackrocks primary service is to provide process plant design and engineering services.