buhrstone

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buhrstone

[′bər‚stōn]
(petrology)
A silicified fossiliferous limestone with abundant cavities previously occupied by fossil shells. Also known as millstone.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
They installed one run of burrstones to grind corn and one run to grind wheat.
French burrstones are made of silicified fossiliferous lime-stone where the calcareous cement of the limestone has been replaced by silica cement and the fossil shells have dissolved.
According to a 1934 inventory recorded by mill owner Frank King, much of the machinery, along with the 42-inch burrstones, came to Missouri from Nordyke & Marmon Co., Indianapolis.
During an initial two-year trial period after restoration, power was provided to the burrstones via the belt pulley of a 1939 F-20 Farmall tractor.
Utica College 1600 Burrstone Road Utica, New York 13502 315-792-3006 www.utica.edu
(2) Present Address: Utica College of Syracuse University, 1600 Burrstone Road, Utica, NY 13502.
The mill has four sets of stones, two french burrstones and two Derbyshire grit stones.
"We will be running one of the french burrstones on the day and we also have other attractions including the blacksmith workshop, our tea room, various classic cars on display and the local radio club will be broadcasting."
Diligent workers accomplished those tasks, and corn meal has been ground for the past seven years using the mill's original 42-inch French burrstones. Future plans include an effort to re-establish the steel roller system with three heavy milling machines, similar to the original "breaks," which were purchased at auction in North Carolina.