INTRODUCTION: Indiana contains extensive clay and shale units which are used in manufacturing various products ranging from bricks and ceramic garden ware to ceramic insulators. This ceramic industry has existed since the early part of the 19th century. Although the population of Indiana has increased, the quantity of some ceramic products used in the state has remained nearly constant or has decreased since the beginning of the 20th century. Wood, plastic, and concrete have replaced structural clay products in some segments of the construction industry. Plastics have noticeably cut into the markets for clay draintile, stoneware, and pottery. But many new products, such as pre-formed brick panels, have offset the reduction in demand for more traditional clay products. Because many of the new products require raw materials that meet more exacting standards than existed only a few years ago, known deposits of clay and shale are being reexamined and new sources are constantly being sought. This report discusses the clay and shale resources of Indiana-their location, quality, mineralogy, and usefulness-and the history and future of the ceramic industry of the state. For more detailed information the reader is urged to consul the selected bibliography at the end of this report. Of special interest is "Clay and Shales of Indiana" (Harrison and Murray, 1964), which summarizes the geologic, chemical, and ceramic data for all the clay-rich units-the data on which much of the material in this report is based.
Austin, G. S. 1975, Clay and shale resources of Indiana: Indiana Geological Survey Bulletin 42L, 40 p., 13 fig., 2 pl.
You may also like:
Can't find what you're looking for? Feel free to contact us directly:
Publication Sales Office
Indiana Geological and Water Survey
420 N. Walnut St.
Bloomington, IN 47404
IGS Return Policy
All sales are final. Materials may not be returned after they have been accepted by the customer. Any discrepencies in mail orders must be reported to IGWS within 10 days of receipt of order.
The Indiana Geological and Water Survey will refund the purchase price and sales tax of products if returned with the original sales receipt within 10 days of receipt of order. Refunds will be issued with the same method of payment as indicated on the original receipt except for cash purchases, which will be refunded by check. Items must be returned in the same condition as purchased. Refunds on digital products and services are not allowed, except for defective media such as CD-ROMs, flash drives, and so on. The customer is responsible for paying shipping costs to return items.