Dump—A heap of vein stuff, etc.
Exploitation—The actual mining following exploration.
Fathom—Six feet.
Fault—A break in a vein or bed.
Float-gold—Fine grains that do not sink in the water.
Float—Veinstone or ore by which a vein is traced.
Flume—Wooden troughs carrying water.
Flux—Material added to help fusion.
Foliated—In thin layers.
Gangue—Veinstone.