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Hershey Book of the Diamond

Book Name: Book of the Diamond

Author: Hershey

Published: 1940

In mineralogy, diamond (from the ancient Greek adamas, meaning "proper" or "unalterable") is an allotrope of carbon, where the carbon atoms are arranged in a variation of the face-centered cubic crystal structure called a diamond lattice. Diamond is the second most stable form of carbon, after graphite; however, the conversion rate from diamond to graphite is negligible at ambient conditions. Diamond is specifically renowned as a material with superlative physical qualities, most of which originate from the strong covalent bonding between its atoms. In particular, diamond has the highest hardness and thermal conductivity of any bulk material synthesized so far. Those properties determine the major industrial application of diamond in cutting and polishing tools.

Diamonds have been reported from Idaho and Mon­tana, and one brown crystal which weighed one carat, from Philadelphos, Arizona. Much excitement and some legislation was secured by the discovery of diamonds and rubies in Arizona a few years back. The discov­erers had first salted the ground very liberally with Afri­can diamonds and garnets. It cost their western dupes about three-quarters of a million dollars all told.

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