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Manganese is a chemical element with the symbol Mn and atomic number of 25. It is found as the free element in nature (often in combination with iron), and in many minerals. The free element is a metal with important industrial metal alloy uses. Manganese ions are variously colored, and are used industrially as pigments and as
View of mines, plant, rail yard in Cardin, Oklahoma (1922) An unusual cluster of galena crystals from the Tri-State district. The gold-colored mineral is chalcopyrite. Size: 3.9 x 3.4 x 2.5 cm. The Tri-State district was a historic lead-zinc mining district located in present-day southwest Missouri, southeast Kansas and northeast Oklahoma. The ...
Pages in category "Manganese mines in the United States" The following 5 pages are in this category, out of 5 total. This list may not reflect recent changes. A.
The OMB defines a core-based statistical area (commonly referred to as a CBSA) as the county or counties (or county-equivalents) surrounding at least one densely-settled core of at least 10,000 population, [2] "plus adjacent counties having a high degree of social and economic integration with the core as measured through commuting ties with ...
The first counties were established while Kansas was a Territory from May 30, 1854, until January 29, 1861, when Kansas became a state. Many of the counties in the eastern part of the state are named after prominent Americans from the late 18th and early-to-mid-19th centuries, while those in the central and western part of the state are named ...
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The percent of those with a bachelor’s degree or higher was estimated to be 11.4% of the population. [17] 24.6% of the population was under the age of 18, 7.6% from 18 to 24, 24.2% from 25 to 44, 24.4% from 45 to 64, and 19.1% who were 65 years of age or older. The median age was 40.2 years. For every 100 females, there were 107.6 males. [12]
A population density map of Kansas. The United States Census Bureau estimates that the population of Kansas was 2,913,314 on July 1, 2019, a 2.11% increase since the 2010 United States census and an increase of 58,387, or 2.05%, since 2010. [68]