160 THE PROSPECTOR'S HANDBOOK. 



GOSSAN Quartz rock with iron oxide as stains or in small cavities. 



Found on the surface or near the top of a lode. 

 GRADE An ore which carries a great or comparatively small amount 



of valuable metal is called respectively a high or low grade ore. 

 GRANULATED In the form of grains. 

 GKANZAS (Spain) Poor ores. 

 GRASS ROOTS At the surface. 

 GREDE (Venezuela) A yellow iron-stained clay. 

 GREENSTONE A granular trap rock. Contains hornblende and felspar 



in small crystals or grains. 



GREISEN An altered granitic rock, grey in colour. 

 GRIT A variety of sandstone of coarse texture. 

 GRIZZLY (America) Bars set in a flume to intercept the large stones. 

 GULCH A ravine. 

 GULLY Feeder of a creek. 

 GULLIES (Cornwall) Worked-out cavities. 

 GUTTER Lowest portion of an alluvial gold deposit. 



H. 



HACIENDA (Spain) House where ore is melted. 



HADE Dip of a lode. 



HALVANS Waste of copper ores. 



HALTER (New Zealand) A miner working on his own account. 



HANGING WALL The upper wall of a lode. 



HARROW (Australia) An apparatus used for mixing gold-bearing 



clays. 



HEADING SIDE The under side of a lode. 

 HEADINGS Coarse gravel above gold-bearing " wash-dirt." 

 HEAD-RACE An aqueduct for bringing a supply of water. 

 HEAVE When the lode stops at the end of a level on account of a 



cross-course, it is said to be " hove." 

 HEAVY GOLD (Australia) Gold of the size of gunshots. 

 HECHADO (Spain) The dip of a lode. 

 HEMMA (Sanskrit) Gold. 

 HORN A hard siliceous rock. 

 HORNSTONE (See Chert.) 



HORSE A term applied to masses of country rock found in a lode. 

 HORSE-FLESH ORE Purple copper ore. 

 HYDRAULIC HOSE (America) The hose used to conduct a stream ot 



water, the force of which washes down the face of the alluvial gold 



bearing deposit. 

 HYDROUS Containing water, in its composition. 



IGNEOUS Certain rocks which have been subjected to heat. (Set 

 Chap. II.) 



