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The Main entrance to the Mineral Show The presentation of a new edition of Mineralientage by the Keilmann's family. Mineralientage München is the largest mineral show in Europe, held in the Bavarian city of Munich (München in German), a few weeks after the Oktoberfest. It began in 1964 and celebrated its 50th edition in 2014. [1]
In 1953 the GIA developed its International Diamond Grading System and the "four Cs" (cut, clarity, color, and carat weight) as a standard to compare and evaluate the quality of diamonds. [ 2 ] As of 2024, the institute is headquartered in Carlsbad, California , and operates in 13 countries, with 11 campuses, 9 laboratories, and 4 research centers.
The Mineralogical Record was first published in 1970, on the initiative of John S. White, a curator in the Smithsonian Institution's Department of Mineralogy, with the aim of filling the gap between scientific mineralogy journals (which began at that time to look more like solid state physics and chemistry than conventional descriptive mineralogy) and purely amateur magazines. [1]
This is a list of minerals which have Wikipedia articles. Minerals are distinguished by various chemical and physical properties. Differences in chemical composition and crystal structure distinguish the various species .
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Gems & Gemology is a quarterly scientific journal published by the Gemological Institute of America. Each issue is devoted to research on diamonds , gemstones , and pearls . Topics include geographic sources, imitations and synthetics, treatments, and identification techniques.
The Justice Department has charged 64 people in a fraud case they say bilked $300 million from more than 100,000 victims.
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