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Mozarkite consists essentially of silica (quartz - SiO2) with varying amounts of chalcedony. It has won distinction as a particular form or variety of chert because of its unique variation of colors and its ability to take a high polish. It has the hardness of 7-7.5 on the Mohs scale, which qualifies it as a suitable material for semi-precious gemstone, and has a density of about 2.65 g/cm3. Typically, the colors are different hues of red, pink, and purple with varying tints of green, gray and brown. It is collected and admired by lapidarists across the country.
Interest in collecting mozarkite in Missouri started in the early 1950s, in Benton County, Missouri. It is found primarily in west-central Missouri, south of the Missouri River, and west of the Lake of the Ozarks. Mozarkite occurs in the Cotter Dolomite of Ordovician age, which means it is some 450 million years old. It is found in residual boulders in the soil on hill slopes, along ditches, and in roadcuts where the boulders are exposed in the soil formed by weathering of the Cotter Dolomite.
Missouri Department of Natural Resources, Geological Survey and Resource Assessment Division fact sheet number 23; PUB 000653; 6/2002
^"Missouri's State Rock". Office of the Secretary of the State, Missouri. June 25, 2013. Retrieved 2013-06-25.
April 27, 2024
mozarkite, this, article, relies, largely, entirely, single, source, relevant, discussion, found, talk, page, please, help, improve, this, article, introducing, citations, additional, sources, find, sources, news, newspapers, books, scholar, jstor, october, 20. This article relies largely or entirely on a single source Relevant discussion may be found on the talk page Please help improve this article by introducing citations to additional sources Find sources Mozarkite news newspapers books scholar JSTOR October 2021 Mozarkite is a form of chert flint It is the state rock of Missouri The name is a portmanteau formed from Mo Missouri zark Ozarks and ite meaning rock Mozarkite Mozarkite consists essentially of silica quartz SiO2 with varying amounts of chalcedony It has won distinction as a particular form or variety of chert because of its unique variation of colors and its ability to take a high polish It has the hardness of 7 7 5 on the Mohs scale which qualifies it as a suitable material for semi precious gemstone and has a density of about 2 65 g cm3 Typically the colors are different hues of red pink and purple with varying tints of green gray and brown It is collected and admired by lapidarists across the country Interest in collecting mozarkite in Missouri started in the early 1950s in Benton County Missouri It is found primarily in west central Missouri south of the Missouri River and west of the Lake of the Ozarks Mozarkite occurs in the Cotter Dolomite of Ordovician age which means it is some 450 million years old It is found in residual boulders in the soil on hill slopes along ditches and in roadcuts where the boulders are exposed in the soil formed by weathering of the Cotter Dolomite State Rock editMozarkite was designated the official state rock of Missouri by the 74th Missouri General Assembly in 1967 1 References editMissouri Department of Natural Resources Geological Survey and Resource Assessment Division fact sheet number 23 PUB 000653 6 2002 Missouri s State Rock Office of the Secretary of the State Missouri June 25 2013 Retrieved 2013 06 25 Retrieved from https en wikipedia org w index php title Mozarkite amp oldid 1095056785, wikipedia, wiki, book, books, library,
