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Handing. —Raising material from a mine. 
Hazle.—A mixture of sandstone and shale. 
Headings. — Coarse gravel above wash dirt. 
Head Race.—A n aqueduct for bringing water. 
Head Swoed. —Water discharged through an adit level. 
Heaves. — Faults or throws in a lode. 
Heavy Gold. — W hen gold is found in large particles. 
Heavy Spar. — B arytes. 
Hole. — T o pick out the soft clay beneath a lode or seam preparatory to 
wedging or blasting the mass out. 
Horizon. —The stratigraphical position of a bed or series of beds of rock. 
Hornblende. —A mineral which imparts the greenish colour to diorite and 
many crystalline rocks. 
Hornstone. —A hard liinty rock. 
Horse. — A mass of country rock splitting a lode. 
Horseflesh Ore. — Purple copper ore. 
Hove. — A lode is hove or thrown in a certain direction by a fault. 
Huel, or Wheal. —A mine. 
Hungry. —Non-metalliferous lodes or belts of country are said to be 
liungry-looking. 
Huntington Mill. — A mill in which the stone is ground against the sides of 
a fixed pan by revolving grinders. 
Hydraulicing. — Working an alluvial deposit by means of a jet of water. 
Hydraulic Cement. —A cement that will set under water. 
Hydrous. —Minerals which contain water chemically combined. 
Igneous. — Rocks which have been deposited in a molten state. 
Incandescent. — White hot or glowing. 
Inch (Miners’) is the quantity of water that will pass through a horizontal 
slit 24 inches long by 1 inch high, whilst for pressure the water stands 6 inches 
above the hole; this gives 2,274 cubic feet in 24 hours. 
Incline. — A slanting shaft. 
Incrustation.— A coating of foreign matter. 
Indurated. — Rocks that have been hardened by the action of heat. 
In Situ. — In the same place where it was originally deposited. 
Intrusive. — Rocks that have been thrust amongst others in a molten state. 
Iridescent. — Having a play of colours on the surface. 
Iron Pyrites. — Yellow sulphide of iron, also called nmndic. 
Ironstone. — Iron ores or a substance containing a good deal of iron and 
being stained by it. 
Jade. — A green variety of hornblende largely carved in New Zealand. 
Jasper. — A red or yellow viliceous rock containing a little clay and oxide of 
iron. 
Jet.— A compact, highly lustrous variety of lignite. 
Jetters. — Rods connecting a water wheel with a pump. 
Jeweller’s Shop.— Very rich patch in a gold mine. 
Jigger. — A machine for dressing small ore in which a sieve is dipped or 
moved about in water. 
Joints. —Cracks or partings across the bedding planes of rock. 
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