Democratic Sentinel, Volume 20, Number 41, Rensselaer, Jasper County, 16 October 1896 — Diamonds in Steel. [ARTICLE]

Diamonds in Steel.

Some time ago it was shown by M. Moissan, a French chemist, that when iron was saturated at 3,000 centigrade with carbon and then cooled under a high pressure a portion of the carbon separated out in the form of diamonds.' The conditions under which very hard steels are now made should also result! in the formation of diamonds, and at examination of a large number of earn-! pies of such steel has shown that this is really the case. The diamonds are obtained by dissolving the metal in acid and then subjecting the to the action of concentrated nitric acid, fused potassium chlorate, hydrofluoric and sulphuric acid successively. The crystals are very minute, the largest being only five mm. in diameter, but they present all the chemical and physical properties of true Engineering and Mining Journal. Tommy—Say, Mollie, I wish I had ten cents to get some candy with. Mollie— Go and ask father who Socrates was and what is meant by the differential calculus. He’s got company, and I •houldn’t wonder if he gave you a quartn. —Boston Transcript