Show DIAMONDS WHILE YOU WAIT Valuable Crystals Made In Laboratory of Prof Moissan The art of making diamonds has been given a step forward through a study of the diamondbearing meteoric Iron of Canon Diablo In a section of this famous meteorite Prof Moissan has found numerous diamondsboth black and transparent together with graphite and phosphorus and sulphur combined with a Iron He has also made experiments to determine tho effect of silicon sulphur and phosphorus phos-phorus Iron was fused with a large mass of sugar In a crucible In an electric elec-tric furnace A soon as the molten iron had become saturated with carbon car-bon partly from the sugara small proportion of Iron sulphide was Intro duced and the crucible was plunged Into cold water With rapid cooling as an essential the carbon crystal lized out from the center of the mass The Iron sulphide considerably Increased In-creased the yield of diamond crystals as did also the silicon but phosphorus had no Influence Science SIftings |