Loring Coes junior
Loring Coes, Jr. ( 1915 in Worcester , Massachusetts , † 1978 ) was an American chemist . He was the first to synthetically produce a high-pressure modification of quartz , which was later named after him, the coesite .
Life
Coes was born in Worcester, Massachusetts, in 1915, the second of five children. From an early age he was very interested in chemical reactions and as a student he built a laboratory in his accommodation. After graduating, he worked for the Norton Company , a high-tech company focused on researching superhard materials. Coes was a heavy smoker and later had drinking problems. He died of lung cancer in 1978 at the age of 63.
research
Starting in 1945, the Norton Company , for which Coes worked, experimented with high pressures. They wanted to make super-hard materials and diamonds synthetically. While others only put high pressure on it, Coes took a different route. He realized that in nature, in addition to high pressure, great heat was necessary for the creation of diamonds. With a lot of effort and good ideas, he was able to solve the big problems in these experiments. He was able to expose rock samples to temperatures of over 1000 ° C at pressures of thousands of atmospheres . He made his greatest discovery when he exposed ordinary quartz to a pressure of 35,000 atmospheres and a temperature of 800 ° C. An unknown, dense modification of quartz was created. Since Coes was conducting secret research at the time, his extraordinary discovery initially remained unknown to the outside world. It was not until July 31, 1953 that he published a short version of his discovery, which received great attention from geoscientists . Coes also suggested that this mineral must occur in nature but has so far been overlooked. Geoscientists were now trying to discover the mineral in nature. The impact researcher Edward CT Chao analyzed sandstone fragments from the ejecta of the Meteor Crater in Arizona and found the mineral described by Coes in early 1960. The International Commission for New Minerals named the new mineral in 1960 in honor of its discoverer, Coesite .
swell
- Robert M. Hazen: The Diamond Makers ; Page 78 ff Chapter 5 “The crystals of Loring Coes” books.google.de ISBN 0-521-65474-2
personal data | |
---|---|
SURNAME | Coes, Loring junior |
ALTERNATIVE NAMES | Coes, Loring Jr .; Coes, Loring, Jr. |
BRIEF DESCRIPTION | American chemist |
DATE OF BIRTH | 1915 |
PLACE OF BIRTH | Worcester , Massachusetts |
DATE OF DEATH | 1978 |