Bluestone is actually a naturally occurring blue-gray version of sandstone and subsequently has much the same advantages as its traditional sandstone cousins. Bluestone pavers are durable and versatile. Installation is relatively simple, with a wide range of dimensions available. Born of sand and quartz particles, bluestone is most native (in the U.S.) to Pennsylvania and New York, where it has been mined for more than a century.
Bluestone is treated with flame to create a uniform, coarse, pebble-like surface. Called thermal treated bluestone, these are the pavers most ideal for outdoor use because the high heat creates a slip-resistant surface. Natural cleft bluestone has not been heat-treated. It is much less uniform but also very durable and weather resistant. Bluestone pavers are similar to sandstone in maintenance and cleaning. Pavers should be installed clean and sealed as soon as possible. Be sure that the right sealant is chosen for bluestone (i.e., one designed for ‘cementitious’ pavers).
Bluestone pavers are widely used in landscaping for patios, walkways, gardens, and even as pool decking. They are also common at fireplaces and steps. Bluestone pavers are also available in a cobblestone-like appearance called Tumbled Cobble, which are most suited to garden paths.
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