A substance used to promote the fusion of metal in the reduction of ore.
The wall on the lower side of a vein.
To signify that water is drained out of a mine.
A break or a crack.
Gold uncombined with other substances.
Ore which is readily saved by amalgamation.
A machine for concentrating ores.
The non-metallic worthless rock in a lode.
An irregular vein.
A stratified primary rock.
Hydrate oxide of iron, and often an indication of favourable results.
In the form of grains.
The wall on the upper side of a vein.
A displacements a vein or stratum.
A dark green mineral, exceedingly tough.
Masses of country rock in a vein.
Barren vein matter.
Forcing down auriferous gravel by discharging water on it with great pressure through pipes.
Bocks consolidated from a molten state.
Country rook impregnated with ore.
The dip of a vein.
A slanting shaft.
An apparatus for separating ores.
Taking possession of a claim which has been abandoned, or which has been forfeited through non-fulfilment of legal conditions.
The union of two or more veins.
A tract of country or reef which has a promising appearance.
The extraction of metal salts from ores by means of a solvent.
A small lode running into a larger one.
Tunnels driven into a mine.
To mark out the boundaries of a mining property.
A metalliferous vein, having well-defined walls.
Carbonate of copper.
The barren rock, or gangue, containing metalliferous ores.
The result of the first incomplete reduction of ore.
Containing metal or ore.
Bocks which have been changed from their original condition.
Works for treating ore by other means than smelting.
The receptacle in which ore is crushed.
The principal lode running through a section of country.
That portion of a farm which, on the farm being declared a public gold-field, the freeholder has a right to take up for himself.
A large solid mass of gold.
When the lode outcrops on the surface, and is taken out without sinking a shaft.
A working or excavation open from the surface.
A mineral compound from which metal is extracted.
Farts of the vein which appear on the surface or close to the surface.
The production of ore from a mine.
Any element or metal combined with oxygen.
To wash earth or gravel or crushed rock in a pan in order to obtain the particles of gold.
Auriferous gravel rich enough to pay for washing and working.
The rich part of a mineral vein.
The pinching out of a vein.
Part of a lode left standing as a support.
The machinery of a mine.
A mass or patch of rich ore in a vein, and generally of small extent.
A solid substance separated from the solution by chemical decomposition.
Searching for mineral lodes or deposits.
To crush to powder.
A sulphuret of iron.
Vein stuff largely associated with ores.
An altered sandstone in which the grains of sand have been cemented by silica.
A substance employed to precipitate some other substance by the mutual reaction of one towards the other.
To separate metals from their ores.
A lode or vein of mineral.
Purifying crude metallic products.
Ores which are difficult to treat.
The rock left standing in a mine.
A machine for breaking rock into small pieces.
A machine for boring holes in rock, and generally worked by compressed air.
The course or direction of a lode.
Placing rich ore in a mine for deceptive purposes.
A micaceous clay slate.
A bed of coal.
A certain portion of ground in which mines are situated.
Timbers placed in a mine to support excavations.
A deep pit or opening sunk from the surface, and by means of which the mine is developed and worked.
A variety of slate.
A ledge of rock upon which drift rests.
A small fault or disturbance in the lode.
Ore finely crushed and pulverized into pulp.
Washing auriferous sand through long boxes, or sluices, as they are called.
The process of extracting metal from their ores by fusion.
A small vein leaving the main lode, but not returning to it.
Heavy pestles for pulverizing quartz.
An upright frame containing stamps, mortars, screens, inclined tables, and other accessories.
The workings in a mine between levels, from which ore is taken in a series of steps.
Breaking ore in a section of ground above, below, or between levels. Breaking ore overhead in a level is called 'overhand stoping,' and breaking ore under the feet in a level is called 'underhand stoping.'
A thin course of ore.
A combination of sulphur with a metal.
A pit sunk at the bottom of a mine to collect water.
The engine shaft.
The axis of a depression. A term signifying that from a given line the strata dip as though bent by pressure.
The refuse which after the ore has been treated in a mill still contains valuable particles of metal.
The channel through which the tailings, suspended in water, are carried from the mill.
A metal of many combinations, and often exceedingly rich in gold or silver.
Ore containing small grains of oxide of tin.
Ore obtained from a tin lode.
To follow the course of a vein by surface indications.
The course or direction of a vein.
Miners who work a section of ground in a mine, and pay a percentage on the ore they obtain.
Sinking shafts, driving levels and cross-cuts by contract, and paid for at so much per foot or fathom.
The dip of a vein on its departure from the vertical.
The opening up which the ventilating air passes out of a mine.
To excavate or open upwards.
A concentrating machine.
Synonymous with lode or reef.
Barren rock from the sides or boundaries of a vein.
The level at which water is drained from a mine.
The Cornish name for a mine.
A rotary machine for hoisting ore to the shaft.
A shaft which connects levels in a mine, but which does not reach the surface.
The developments in a mine, such as levels, drifts, stopes, cross-cuts, tunnels, etc.