02162cam a22003373u 450000100060000000300070000600500170001300600020003000700050003200800410003704000110007804100170008905000070010610000370011324500440015026400510019430000470024533600260029233700260031833800360034449000610038050000310044150800910047252010400056353400450160365300260164865300270167483000610170185600430176299900190180566308UtSlPG20260610134529.0mcr n260607r2021||||utu|||||o|||||||||||||| d  aUtSlPG 7aen2iso639-1 4aQE1 aIllinois State Geological Survey10aGuide to Rocks and Minerals of Illinois 1aSalt Lake City, UT :bProject Gutenberg,c2021  a1 online resource :bmultiple file formats  atextbtxt2rdacontent  acomputerbc2rdamedia  aonline resourcebcr2rdacarrier1 aIllinois State Geological Survey. Educational series, 5.  aRelease date is 2021-09-15  aStephen Hutcheson and the Online Distributed Proofreading Team at https://www.pgdp.net  a"Guide to Rocks and Minerals of Illinois" by Illinois State Geological Survey is a scientific publication written in the late 1950s. This book serves as an educational resource that explores the geology of Illinois, specifically its diverse collection of rocks and minerals. It aims to inform readers about the state's geological background while guiding students and amateur geologists in their efforts to understand and collect these natural resources.  The guide provides a detailed overview of various rock and mineral types found in Illinois, such as granite, conglomerate, sandstone, and limestone, along with descriptions of their properties and uses. Through illustrations and geological maps, readers are introduced to the complexity of Illinois' geology, including the impact of glaciation on the region. The book also features identification keys and advice on collecting specimens, making it a practical tool for both educators and enthusiasts interested in the earth sciences. (This is an automatically generated summary.)  nOriginal publication data not identified  aPetrology -- Illinois  aMineralogy -- Illinois 0aIllinois State Geological Survey. Educational series, 5.40uhttps://www.gutenberg.org/ebooks/66308  c107130d107130