ROCKS, THEIR COMPOSITION, IDENTIFICATION AND PROPERTIES

Rocks of all kinds are made up of an assemblage of minerals, and most of the minerals, of which there are a vast number, have strange names. It is sufficient that only a small number of the commonest rock-forming minerals will be introduced to aid with rock identification. The engineering properties of the rocks often relate to the minerals which make up the rock, and their arrangement. The minerals may not be the original ones which formed the rock, and some of these secondary minerals are also introduced…