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chert |
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chert: see flint flint, variety of quartz that commonly occurs in rounded nodules and whose crystal structure is not visible to the naked eye. Flint is dark gray, smoky brown, or black in color; pale gray flint is called chert. ..... Click the link for more information. . chert [chərt] (petrology) A hard, dense, sedimentary rock composed of fine-grained silica, characterized by a semivitreous to dull luster and a splintery to conchoidal fracture; commonly gray, black, reddish brown, or green. Also known as hornstone; phthanite. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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Indymac Bank has made the following personnel changes at its Pasadena headquarters: Yun-Ni Chert was promoted to senior vice president, investment portfolio; Boulton Fernando was named senior vice president, chief security officer; and Marnell Land was promoted to vice president, compliance and operations corporate administration procurement. A mountain several miles away provided a type of stone called chert for making tools, though the site also contains flakes of obsidian from Owens Valley. Chert CJ, Hsueh YM, Lai MS, Shyu MP, Chert SY, Wu MM, et al. |
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