Creator:W.L. Finlay Date Created: Place Created:White Pine, Michigan Keywords:Copper Range Company,megadiamonds for rock cutting Context:letter to Tracy Hall ************************************************** cc: Prof. Carl Peterson - MIT (with copy of p. 366 1-30-76 Science) R. Talvensaari R. Pothini (906) BSJ-SIII Copper Range Company "Whites Pink, Michigan 40071 Walter L. Finlay VICE-PRESIDENT RESEARCH AND DEVELOPMENT Dr. Tracy Hall Magadiamond Corp. \ Provo, Utah 84601 Subject: Sintered Megadiamonds for Rock Cutting Dear Dr. Hall: I was interested to learn of your work on the above in the 1-30-76 issue of Science, p. 366. We, and our associates, are involved in several in situ rock-cutting developments for mining and tunneling e. g. the smaller-diameter, high-penetration drilling of roofbolt holes, and are considering both natural and synthetic diamonds, in both chip and "Compax" form, in this work. Accordingly, we would be interested to receive full catalog and price list information on your megadiamonds; also, for background information, reprints of, or references to, technical and patent literature publications on these fascinating new materials. W. Li. i'in Lay WLF:cp