Minerals and ManThe nature, origin, and properties of 150 principal minerals are discussed in this illustrated volume as well as past and present uses. |
Contents
Preface | 5 |
Minerals and How to Know Them | 8 |
Early Use of Minerals | 26 |
Copyright | |
19 other sections not shown
Common terms and phrases
abundant Africa aluminum ancient anhydrite associated atoms azurite basalt blue borax boron calcite calcium called carbonate cavities century chemical composition clay cleav cleavage color colorless common containing copper corundum crust crystal structure deposits depth diamond early earth's elements emeralds Emil Javorsky feet feldspar fluorite franklinite garnet gem stones goethite gold grains granite green gypsum hard hematite hundred igneous rocks impurities industry iron known Lake lava layers limestone luster magma magnetite material metal metamorphic mica miles mineralogist minerals mining Mountains occurs olivine opal oxide pegmatites places platinum produced properties pyrite pyrrhotite quartz quartz crystals rare result ruby rutile salt sand sapphire sedimentary rocks siderite silicate small amounts sodium South specific gravity specimens sphalerite Studio Hartmann sulfide sulfur surface temperature thousand tons topaz tourmaline traprock uranium uranium minerals usually variety veins volcanic well-formed crystals yellow zeolites zinc zone