Origin of limestone
Examples from the Web for limestone
So he and the scouts dug into a limestone hill and built a factory in record speed.Israel Had a Secret, Underground Bullet Factory
July 18, 2014
The ship, which was carrying a consignment of limestone, broke in half.Prince William's Dramatic Rescue Mission Boosts Royals' Image
November 28, 2011
Middlebury is gorgeous, with big, open quads and limestone buildings that echo Yale's.The Great College Road Trip
April 8, 2011
The soul of his output in this period: a series of 20 limestone heads, evocative of African sculpture."Mad, Bad Modigliani"
March 5, 2011
Shell ore, block ore, and limestone also exist in abundance.Cleveland Past and Present
This "fur" is carbonate of lime, the same sort of substance as limestone and chalk.Coral and Coral Reefs
Thomas H. Huxley
Limestone is even more dangerous if any pollution exists in the vicinity.Rural Hygiene
Henry N. Ogden
Ten miles in less than half a day, and limestone walls below.
Falls of sandstone and limestone are repulsive to both theologians and scientists.The Book of the Damned
- a sedimentary rock consisting mainly of calcium carbonate, deposited as the calcareous remains of marine animals or chemically precipitated from the sea: used as a building stone and in the manufacture of cement, lime, etc
Word Origin and History for limestone
- A sedimentary rock consisting primarily of calcium carbonate, often in the form of the minerals calcite or aragonite, and sometimes with magnesium carbonate in the form of dolomite. Minor amounts of silica, feldspar, pyrite, and clay may also be present. Limestone can occur in many colors but is usually white, gray, or black. It forms either through the accumulation and compaction of fossil shells or other calcium-carbonate based marine organisms, such as coral, or through the chemical precipitation of calcium carbonate out of sea water.
Sedimentary rock formed primarily of calcium carbonate, often the skeletons of small marine organisms.