Prospector's Field-book and Guide: In the Search for and the Easy Determination of Ores and Other Useful Minerals

alumina ammonia antimony arsenic assay bead beds blowpipe blue borax brown calcite California carbonate chalcopyrite charcoal chemical chloride clay coal cobalt color contains copper corundum crucible crystalline crystals cubic cupel deposits diamond dissolved earth feet feldspar fissures flame fracture fuses galena gangue garnet glass globule gneiss gold gossan grains granite graphite gravel green hardness heat hematite hornblende hydrochloric acid igneous inches iron lead lime limestone lode luster magnesia magnetite manganese masses massive mercury metal metamorphic mica mineral mines nickel nitric acid occurs opal orebody outcrop oxide particles phosphate platinum potash pounds powder precipitate produced prospector pure pyrite quantity quartz rocks ruby salt sand sandstone schists scratched serpentine shale silica silver soda sodium soluble solution sometimes specific gravity sphalerite stone strata streak sulphate sulphide sulphuric acid surface tion topaz translucent transparent tube usually variety veins weight yellow zinc