Cononish Gold Mine Core
A core sample of rock from the Cononish gold mine near Tyndrum in the Highlands.
Tag: drill
Tricone Drilling Head
A rock drilling head from a North Sea oil rig. The three hardened steel cones have hard teeth that chew up the rock, and it is then flushed away by water pumped through the head.
Mining Drill
A twist drill, about 5 feet long, used to drill holes for explosives in mining.