Kaaba Mine, Nighthawk Mining District, Okanogan County, Washington, USAi

Regional Level Types
Kaaba Mine	Mine
Nighthawk Mining District	Mining District
Okanogan County	County
Washington	State
USA	Country

A lead mine just west of Nighthawk. The ore occurred as an 8' thick shallowly dipping quartz vein in granite. It was developed by a 300' deep incline shaft with 1100' of drifts. A 150 ton flotation mill was built at the mine as well. Production was sporadic, but the greatest period was from 1943-1949 when 95,000 tons was produced.
Alteration: Wall Rock Hydrothermally Altered

Commodity: PRODUCTION IN: 1915, 1918, 1920, 1929, 1943-1949, AND 1950.

Deposit: 27 claims; 7 patented claims and 3 patented lots. Quartz vein with irregular bands of ore minerals parallel to the walls; smaller bunches and specks of ore are scattered throughout the quartz, also.

Development: Shaft and drifts; 1921: two-drill air compressor operated by a 30-hp motor, and a 20-hp motor furnishing power to a small hoist plus customary mine bldgs and auxillary mining equipment; 1952: a 150 ton flotation mill was built. ; econ.com: mine maps at wash dm&e, olympia

Geology: The granitoid wall rocks in the vicinity of the vein have undergone hydrothermal alteration, the basic minerals being partly converted into chorite and in places slightly serpentinized while the feldspars are altered to kaolin. The qtz vein filling has been shattered parallel to the walls by movements along the plane of the vein. The vein is intruded by two very fine-grained diabase dikes. In the bottom of the shaft these dikes form respectively a false foot-wall and hanging wall. Near the 200 ft level the large dike leaves the foot-wall and breaks up through the vein to continue near the hanging wall. 50 feet below the collar of the shaft it leaves the vein, breaks nearly vertically up through the granodiorite and outcrops on the hillside above the shaft. The large dike is 3 ft thick at the 200 ft level and narrows down to one ft at the 50 ft lf the dikeintrusion has caused some of the sulfides to develop flow structure.

Rock formation(s): Similkameen Batholith


Ore(s): Quartz Vein

Other Databases

Link to USGS MRDS:	10041580

Other Regions, Features and Areas containing this locality

References