X-Ray Study of Laboratory-made Diamonds

Abstract

LAST summer one of us was able, through the courtesy of the General Electric Co., of Schenectady, New York, to select a few of the diamonds made in the Company's Research Laboratories and to bring them to University College, London, for detailed X-ray examinations. These diamonds are mostly very small (less than ½mm. linear) and are coloured (yellow, green, black) and good shapes are rare. Although some colourless diamonds have been made, there were none among our collection, nor did we have any of those of pure cubic form. The habits, which are exceedingly interesting, will be discussed in the more extended account of this work to be published later.