At Shakopee, Schroeder Brothers have made bricks 4 years; annual product, 700,000, selling at $5 per M [1,000]. Alluvial clay is used, with admixture of one part sand to two of clay. (The Geological and Natural History Survey of Minnesota, The Eighth Annual Report for the Year 1879, Submitted to the President of the University, Feb. 18, 1880, The Pioneer Press Company, St. Paul, MN, 1880, Page 118)

SCHROEDER BRICK & LIME MANUFACTURING CO. QUARRY.  Some stone is quarried by the Schroeder Brick & Lime Manufacturing Co. in the town of Shakopee. Most of it is used for lime burning and is said to make a very strong brown lime. The quarry face, 12 to 15 feet deep, shows a series of distinct but uneven beds 6 to 8 inches thick. Most of the rock is dolomite but is interbedded with layers of sandstone, which are used locally for foundations. Though it is useful for this purpose probably it would not pay to excavate it except as a by-product in the manufacture of lime. Both rocks are very porous and show irregular jointing planes. (The Structural and Ornamental Stones of Minnesota, Oliver Bowles, Department of the Interior, United States Geological Survey, Bulletin 663, Government Printing Office, Washington, D.C., 1918, Page 189)