Cole and Goodwin Mine (Sulfite Mine; Sulfite property; Arizona-Globe Copper Mine; Cole and Gibson property; Little Miami Mine), Lyons Canyon, Pinal Ranch, Pinal Ranch quadrangle, Pinal Mountains Mining District, Pinal Mountains, Gila County, Arizona, USAi

Regional Level Types
Cole and Goodwin Mine (Sulfite Mine; Sulfite property; Arizona-Globe Copper Mine; Cole and Gibson property; Little Miami Mine)	Mine
Lyons Canyon	Canyon
Pinal Ranch	Ranch
Pinal Ranch quadrangle	Quadrangle
Pinal Mountains Mining District	Mining District
Pinal Mountains	Mountain Range
Gila County	County
Arizona	State
USA	Country

A former underground Cu-Pb-Au-Ag mine located in the center sec. 34, T1S, R14E (Pinal Ranch 7.5 minute topo map), 2½ miles SSE of the Gibson Mine, 5 miles W of Signal Peak, N side of Lyons Canyon, about 8 miles SW of Globe, and 2 miles E of the Gila/Pinal County line, on National Forest land. Produced 1908-1940. Operators included the Cole Development Co.; the Arizona Globe Copper Co.; and, P.J. Hickey. Additional names which apply to this property: Arizona-Globe Copper property; Little Miami Copper Co. property.

Mineralization is a deposit hosted in Algonkian (Precambrian) Pinal Schist. The deposit is a short, irregular shoot of vein matter formed by replacement of sheared sericite-schist in fracture breccia. The ore zone strikes N48E and dips 40-45NW. Variable widths were reported but average was 2-4 feet. The shear zone seems to be parallel in strike with the bedding of the schist but is probably slightly discordant in dip. Toward the SW, the oreshoot ends at a small offset in the shear zone which probably is caused by a minor pre-mineral crossfault. The offset segment is but slightly mineralized. Mineralization includes unspecified copper carbonates. Mineralization is associated with the regional NE-trending fracture system and NE granitic intrusives, both Early Tertiary in probable age.

Area structures include NE-trending shears and Schultze Granite dikes throughout the area. Precambrian Madera Diorite outcrops ½ mile E of the mine. The shear zone is parallel to the schist bedding-foliation, but has discordant dip to the SW. The ore ends in a minor pre-mineral cross fault. The offset segment is only slightly mineralized. Granite dikes parallel to the shear zone both ½ mile N and ½ mile S.

Workings include an inclined shaft said to be 480 feet deep with 700 feet of lateral development in 1919. Two or three drifts and some surface tunnels in 1915. Production was reported at 50,263 pounds of Cu (1908), and in 1939-1940 shipments of a few hundred tons of ore that yielded 32,000 pounds of Cu and 380 oz. Ag.

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Link to USGS MRDS:	10104087

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References