In Indiana, the Salem Limestone is exposed in a narrow area that extends from the southern tip of Harrison County on the Ohio River northward to near Greencastle in Putnam County. Most of the stone suitable for use as dimension stone and for building purposes is found in Owen, Monroe, and Lawrence Counties. Alabama Marble was adopted as Alabama's official state rock on September 12, 1969. Marble has been quarried in Alabama since 1840. Near Sylacauga is a bed of marble at least two hundred feet thick that is famous for its fine quality.
Many people consider it superior to famed Italian marble.
Alabama marble has been used to construct and decorate buildings throughout Alabama and the United States. Vermont Vermont recently designated marble and slate its state rocks. Marble from Danby, Vermont is world famous for it's tight grain and beautiful white stone with light veining. It displays a variety of beautiful natural color patterns. Danby marble was formed about 300 million years ago.