Economic Mineralogy: A Practical Guide to the Study of Useful Minerals |
Other editions - View all
Economic Mineralogy a Pratical Guide to the Study of Useful Minerals Thomas Crook,Longmans Green And Company No preview available - 2019 |
Economic Mineralogy a Practical Guide to the Study of Useful Minerals Thomas Crook No preview available - 2019 |
Common terms and phrases
aluminium amount angles associated barite basal cleavage bead reactions beds Birefringence blowpipe flame brownish calcite calcium carbonate Carboniferous cassiterite cent chalcopyrite chalybite charcoal Chemical chiefly chloric acid chloride clay closed tube coal cobalt colour colourless containing copper crystalline crystals deposits district dolomite felspar fluorite Fracture fragments fused Fusibility galena gneisses gold grains granite graphite green gypsum hæmatite Hardness hydrated hydrochloric acid igneous ilmenite Infus intrusions Isotropic limestone Lustre magnesium magnetite manganese manufacture masses metallic mica Microfragments mined minerals monazite nicols nitric acid notably obtained occurs abundantly open tube Optical sign ordinary acids pegmatites phosphate pinakoidal plane plates potash potassium prism pyrite quartz readily Refractive index rocks sand schists serpentine shales silicate silver sodium sodium carbonate Soluble solution Specific gravity strata sublimate sulphate sulphides sulphur surface symmetry Tertiary traverse uneven uranium usually variety veins vitreous water in closed wolframite yellow yields zinc zinc-blende zircon
Popular passages
Page 69 - Protactinium Radium Radon Rhenium Rhodium Rubidium Ruthenium Samarium Scandium Selenium Silicon Silver Sodium Strontium Sulfur...
Page 69 - Antimony Argon Arsenic Barium Bismuth Boron Bromine Cadmium Caesium Calcium Carbon Cerium Chlorine Chromium Cobalt Columbium Copper...
Page v - The aim of this book is to deal with mineralogy in such a way as to meet the needs of those who wish to restrict their attention to the utilitarian side of the subject.
Page 69 - ... Cerium Cesium Chlorine Chromium Cobalt Columbium Copper Dysprosium Erbium Europium Fluorine Gadolinium Gallium Germanium Gold Hafnium Helium Holmium Hydrogen...
Page 69 - Rn Re Rh Rb Ru Sm Sc Se Si Ag Na Sr S Ta Te Tb Tl Th Tm Sn Ti W U V Xe Yb Y Zn Zr...
Page 305 - This portion of the ore body, which often extends to a depth of 80 feet or more, contains but little or no copper and is therefore of no commercial value, except as an iron ore. Below the gossan is found the black copper zone, which varies from a few inches to a foot or more in thickness...
Page 38 - ... the ratio of the sine of the angle of incidence to the sine of the angle of refraction is the same as the ratio of the respective wave velocities in these mediums, and is a constant for two particular mediums.
Page 68 - The formula of a compound is represented by placing the symbols of the component elements side by side; where more than one atom of the same element occurs in a molecule, the figure expressing this number is written at the right and a little below the corresponding symbol. 25.
Page 7 - After the ample discussion which this case has undergone, and the accurate investigation of every authority upon the subject, it is not necessary to enter into a detailed consideration of the question.