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Minster Church, Cedar Rapids, Iowa |
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Description
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Indiana limestone is made up of a sedimentary formation, which has no noticeable grain running horizontally. This type of limestone can be machined or cut in any direction.
This limestone is characteristically freestone, without pronounced cleavage plains, possessing a uniformity of composition, texture, and structure. It has a high internal elasticity, adapting itself without damage to extreme temperature changes.
There are two color classifications of Indiana limestone: Buff and Gray.
The lightening of color, which creates Buff, takes place in the deposit,
by the oxidizing action of ground water moving down through the deposit.
Gray is at a depth that is
not affected by the oxygen in the ground water.
Buff – a light gray with a slight buff appearance
Gray –a light gray with a less buff appearance
Finishes that can be applied to Indiana Limestone are: Sawn, smooth, honed, hand-faced, bush-hammered, sandblasted and split-faced.
Indiana limestone weighs approximately 150 pounds per cubic foot.
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WSC Inventory
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An inventory of both
Indiana Gray, which is most often specified, and Indiana Buff is maintained at Weber Stone Company.
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Geological Information
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Indiana limestone is geologically known as Salem Limestone. It is essentially a monomineralic rock consisting of calcite (a calcium carbonate mineral) that comes from the skeletal material (about 75 percent) that form the framework grains and the cementing material (about 20 percent) that binds the grains together. The remainder of the stone is made up of porosity and small amounts of non-calcareous materials.
Indiana limestone, an Oolitic limestone, was first formed in a shallow sea that covered the Midwest more than 300 million years ago during the Mississippian geological epoch. This shallow sea was inhabited by a vast number of shell-protected organisms. Over time, the shells were moved, broken, crushed, ground and then re-deposited through the action of the currents. These pieces were incorporated into rock through compaction, interlocking of grains and cementation of the grains.
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West Minster Church, Cedar Rapids, Iowa
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Weber Stone Company
12791 Stone City Road, X-28
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Anamosa, Iowa 52205
(phone) 319.462.3581
(main office fax) 319.462.3585
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(design office fax) 319.462.4024
(email) info@weberstone.com
© Copyright Weber Stone Company,
Inc. All Rights Reserved.
Actual stone color may vary slightly
from the representations in this website
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