3 resultados para IMS LODE
em Digital Commons - Montana Tech
Resumo:
In this issue...Leonard Field, Copper Guards, M-Days, Geology Field Trip, Columbia Riding Club, U.S. Army, International Club, Bob Johnson, Carroll College
Resumo:
During the last few years a great deal of research has been done in connection with the black manganese oxide minerals. This is especially true of the so called mineral psilomelane. It has been proven without a doubt that the name psilomelane has been used in the past to include a great variety of similar black manganese oxide minerals. By the use of X-ray equipment these minerals have been definitely identified.
Resumo:
For many years the Elliston District, of Powell County has been a minor producer of gold, lead, zinc, and silver. Although never among the largest producing districts of the state, it has with the exception of the war years supplied a notable tonnage of ore to the neighboring mills ever since the first placer and lode claims were located there during the late eighteen hundreds.