Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Krutovite is a cubic nickel diarsenide with a chemical composition of NiAs2 and a sulfur content of 0.02-0.34 weight percent (Vinogradova, et al., 1977). Krutovite is composed of nickel and arsenic with trace to minor amounts of cobalt, iron, copper, sulfur, and antimony (Vinogradova, et al., 1977). Krutovite occurs in the Geshiber vein, Svornost shaft, 8th level, in the northwest strike of Jachymov (Veselovsky, et al., 2003). Jachymov, is a Czech mineral town in the St. Joachim's valley of the Ore Mountains. The Ore Mountains, also known as Krusne hory, are composed of two parts: the Precambrian metamorphic rocks and the Lower Paleozoic metamorphic volcano sedimentary sequence (Ondrus, et al., 2003). The surrounding area lies on fault zones where many minerals develop. The Potucky ore district where krutovite was originally found lies on the northern fault zone. Heading south is the Krusne hory fault zone which surrounds the district of the Jachymov.

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