carbonate+of+iron
71fer|ro|cal|cite — «FEHR oh KAL syt», noun. a variety of calcite that contains carbonate of iron and turns brown on exposure …
72capnite — Min. (ˈkæpnaɪt) [in Ger. Kapnit (Breithaupt 1841), f. Kapnik (in Hungary) + ite.] A variety of Smithsonite, containing carbonate of iron. in Dana Min …
73Schikorr reaction — iron(II) hydroxide, Fe(OH)2, the start reagent of the Schikorr reaction …
74Dead Indian Soda Springs — Iron rich water from the springs The Dead Indian Soda Springs are an assortment of small mineral springs that feed into Dead Indian Creek near Eagle Point, Oregon, United States. The springs are rich in sodium carbonate, iron, magnesium, and… …
75pyrite — Iron sulfide mineral (FeS2) also known as iron pyrites and fool’s gold. Pyrite occurs in trace amounts in many sedimentary rocks. It may be locally common in dark carbonaceous limestone and in thin non carbonate beds such as shales, coals and… …
76sedimentary rock — Rock formed at or near the Earth s surface by the accumulation and lithification of fragments of preexisting rocks or by precipitation from solution at normal surface temperatures. Sedimentary rocks can be formed only where sediments are… …
77Dictionary of chemical formulas — This is a list of chemical compounds with chemical formulas and CAS numbers, indexed by formula. This complements alternative listings to be found at list of inorganic compounds, list of organic compounds and inorganic compounds by element. Table …
78Earth Sciences — ▪ 2009 Introduction Geology and Geochemistry The theme of the 33rd International Geological Congress, which was held in Norway in August 2008, was “Earth System Science: Foundation for Sustainable Development.” It was attended by nearly… …
79hydrosphere — /huy dreuh sfear /, n. the water on or surrounding the surface of the globe, including the water of the oceans and the water in the atmosphere. [1885 90; HYDRO 1 + SPHERE] * * * Discontinuous layer of water at or near the Earth s surface. It… …
80chemical element — Introduction also called element, any substance that cannot be decomposed into simpler substances by ordinary chemical processes. Elements are the fundamental materials of which all matter is composed. This article considers the… …
