Elevation: 5,925 feet
Type: Gold, Silver
The Buster mines are located on the divide between Frank Free and Tiger Canyons, in the footwall block of the Olinghouse fault. A large, irregularly shaped body of granodiorite porphyry intrudes andesites of the Chloropagus Formation in the mine area. The mine workings explore north-trending altered and silicified zones along the contact between the intrusive body and the andesites.
The principal mineralized zones occur on the Maciza and Dispensia claims. A north-trending quartz vein 5 to 20 inches wide is present on the Maciza claim. The footwall portion of the vein, commonly 4 to 8 inches in width, reportedly contained as much as 80 dollars per ton in gold and silver, while the remainder of the vein averaged between 5 and 18 dollars per ton.
Source: Geology and Mineral Deposits of Washoe and Storey Counties, Nevada. Bulletin 70, Nevada Bureau of Mines
A rich lense of ore on the Dispensia claim reportedly assayed 40 dollars a ton in gold and silver and contained 1 percent tellurium.
All of the ore extracted from the Buster mines area was apparently thoroughly oxidized.