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Even low elemental concentrations and minute features in diamond can now be analyzed using instruments with higher sensitivity and resolution.

As a result, study combining the inclusion and its diamond host is a powerful tool for geologic research, which itself has improved our understanding of diamond formation. These photos show inclusions of silicate minerals in natural diamond whose background reflectivity has been enhanced by faceting: almandine (left), magnified 10×; pyrope (center), magnified 40×; and diopside (right), magnified 30×. The purpose of this article is to describe our current understanding of where, how, when, and why natural diamonds have been formed.

With some of the surplus profit, AWP decided to do some design work with an engineer from Edmonton, by the name of Klaus “Nick” Drieger.

Drieger and his company, Buffalo Engineering Ltd., drew up the initial concepts of the new concrete grain elevator – to be built with large modular precast concrete pieces and clad with pre-finished metal panels.

Analytical advances, improved geologic knowledge, and the emergence of new diamond-producing regions (such as the Slave craton of Canada) have all contributed to this change. Archean cratons in South Africa have yielded gem diamonds such as these specimens from the GIA Museum’s Oppenheimer Student Collection. Since then, there have been significant advances in the analysis of diamonds and their mineral inclusions, in the understanding of diamond-forming fluids in the mantle, and in the relationship of diamonds to the deep geology of the continents and the convecting mantle. It has been more than two decades since diamond ages have proven to be up to billions of years older than their host magmas of kimberlite or lamproite.Minor sports teams continue to succeed at levels far higher than most communities this size.The fair, but challenging 9 hole golf course remains very popular with both residents and visitors.The occurrence of natural diamonds is remarkable and important to earth studies.