Powellite from the Oriole Mine Near Minerva, White Pine Co., Nevada Tony Nikischer Excalibur Mineral Corporation...image. Calcite Pseudomorphs after Ikaite From Washoe Co., Nevada Bob Werner werner@lcturbonet Ikaite, CaCOi...specimens, collected -25 miles north of Nixon, Washoe Co., NV. The largest single crystal is 10 cm long. Excalibur...mines in the district, and its o re grade was fairl y low, averaging about 0.4% WO3 • Upon entering the...harlottesville, VA 22901- 11 60 Minera(o9ica( Research Co. J,OCnlci! in San Jo! |