Potsdam quartzite is a type of rock formation found in upstate New York. It is often used as a building material due to its durability and unique appearance. However, there are several synonyms for Potsdam quartzite that can also be used in reference to this rock formation. Some alternative names include Potsdam sandstone, Potsdam red sandstone, and Potsdam conglomerate. Each of these names refers to the same type of rock, but may differ slightly in appearance and composition. Regardless of the terminology used, Potsdam quartzite remains a popular building material that has stood the test of time.