McConnico Mining District, Cerbat Mountains, Mohave County, Arizona, USAi

Regional Level Types
McConnico Mining District	Mining District
Cerbat Mountains	Mountain Range
Mohave County	County
Arizona	State
USA	Country

The McConnico District lies about 6 miles southwest of Kingman, southeast of McConnico station on the Santa Fe railway, in the border of Sacramento Valley and the adjacent low foothills and scarp of Kingman Mesa, between elevations od 2,800 and 3,500 feet. It trends north and south and has a length of about 4 miles.

The country rock is principally pre-Cambrian granite, which in the valley portion of the district is covered by wash débris. The ore deposits are contained principally in gold-bearing pegmatite dikes and shear zones, cutting the granite in a northerly direction and, in some places, are associated with later basic intrusives. The principal deposits are those of the Bi-Metal mine, the McKesson group, and the Boulder Creek group.

A good spring, Boulder Spring, occurs in the southern part of the district and water can probably be reached almost anywhere at the depth of a few hundred feet below the surface. Specular iron occurs a short distance south of the McKesson mines. Titanite is reported in the country rock granite southwest of the Bi-Metal mine. Amethyst, associated with some stibnite and galena, is found about one-fourth of a mile northeast of Boulder Spring, in the foothills, probably as a vein pegmatite dike. This amethyst-bearing property is owned by Kinsman & Solomon. It is developed by a 65-foot shaft and has produced some good stones.