Granite and related marble industries are considered one of the oldest industries on this planet; current as far back as Ancient Egypt.[twenty five] A critical breakthrough was the creation of steam-driven cutting and dressing tools by Alexander MacDonald of Aberdeen, influenced by seeing ancient Egyptian granite carvings. In 1832, http://off-campushostel56547.ivasdesign.com/5537817/quartz-worktops-london-for-dummies