Quarrying involves extracting stones from rock surfaces for engineering purposes. It differs from mining which occurs underground. There are several steps to quarrying including site selection, considerations, and extraction methods. Sites must be near resources and transportation with good geology. Extraction can occur through hand tools, machines, or blasting. Blasting is used for hard rock or stones without cracks. Extracted stones undergo dressing to obtain desired shapes and sizes through manual or mechanical processes like sawing or chiseling. Dressed stones are then ready for masonry or construction uses.