Show I DIAMOND CLEAVING V The art of ot lapidary Is one of ot the most delicate employments of ot mechanical teal ical force torce known The practical diamond die dia mond cutter learns many facts about precious stones atones which are s sealed aled book even even to mineralogists For Instance It Is the lapidaries who have found out that diamonds coming from the different districts vary yary remarkably In their degrees of hardness It appears that the hardest diamonds come from New South Wales An unfamiliar fact Is that diamonds diamonds diamonds dia dia- monds are made to assume approximately approximately approximately the required shape by slitting and cleaving and by which Is the rubbing of one diamond against another before they are submitted t to the polishing wheel In cleaving the theIs diamond damond Is cemented on the end of a wooden stick and a steel blade Is driven en kin D with a smart r bl blow In n the direction of ot the n natural tural plane of ot cleavage Diamonds Diamonds Dia Die monds that have been cut by bythe the lapidary's lapidary's lapi lapi- darys dary's wheel lack some of ot the bril- bril ij p nce posses d those byJ those that have lip li ly r bee lea |