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Mother Nature doesn’t make limestone one slab at a time. She operates on a much bigger scale: entire quarries. Indiana Limestone Company owns over 4,500 acres of land, and each block of stone in our inventory is as strong as the first one we pulled out of the earth over 100 years ago.

Cast Stone, on the other hand, is man-made and must be tested periodically throughout a large project to determine its strength. Comprehensive testing is necessary throughout a project to ensure its strength, particulatly if there are any changes in Cast Stone’s fine and coarse aggregate sources. Cast Stone guarantees their stone is always as strong as Indiana Limestone.



Mother Nature builds all of her products to last, and no man-made building materials can compare. It’s not a fair fight. She uses a larger clock than the rest of us, one where the space between a “tick” and a “tock” is a century instead of a second and a typical 9-to-5 can last thousands of years.

Luckily for us, Mother Nature created Indiana Limestone during one of her workaholic marathons, and our stone has demonstrated its durability at each opportunity. One look at any of the iconic structures built at the beginning of the 20th century is all the evidence we need to prove our lasting power. Cast Stone can’t provide examples like these, they don’t exist, but they claim their product endures as long as Indiana Limestone.



Indiana Limestone’s beauty comes from its consistent coloring. Mother Nature made our versatile stone in five different colors and grades. Each one has a bold simplicity suited for any project. It doesn’t matter if your building is more classic or modern, Indiana Limestone can complement every architectural style or building material.

Even though we didn’t need confirmation of Mother Nature’s great taste, we do appreciate Cast Stone’s attempt to imitate the warm tones of Indiana Limestone. They do their best, but they can’t replicate our texture and subtle coloring. Cast Stone claims that it’s as good-looking as Indiana Limestone.


Indiana Limestone Company is unmatched as the premier supplier of Indiana Limestone in a range of beautiful and lasting building products. Founded in 1926, ILCO today remains the provider of choice for this internationally renowned natural stone. Throughout an illustrious history in which its stone has made such iconic structures as the Empire State building, National Cathedral, and the Pentagon, ILCO has reliably provided the highest quality products and services carefully tailored to the needs of the market with an environmental, natural focus.

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