A: There are different types of sandstone, and the cleaning recommendations vary depending on its type. If it is a calcareous sandstone, it should be cleaned by washing it with an alkaline cleaner.

Al Naslaa is a rock formation in Saudi Arabia's northwestern desert consisting of two huge, symmetrical stone blocks that are separated by a mysterious gap and sit on small pedestals.

Elegant arches, pillars and alcoves carved out of sandstone through erosion, are actually caused by the load above the sandstone strengthening the rock beneath to resist weathering, a new study finds.

The Archaeological Survey of India (ASI) study reveals the use of sandstone and ancient bricks in the construction of the Gyanvapi mosque complex. Learn more about the study and the factors ...

Hence, the sandstone blocks of the Koh Ker monuments likely originate from the surrounding area rather than from Mt. Kulen, which was used to supply sandstone blocks to the Angkor area.

Centuries after the construction of Cambodia's Angkor Wat , archaeologists have uncovered traces of a series of canals that suggest the 5 million tonnes of sandstone used to build the temples took ...

UGS paleontologists originally extracted the nine-ton sandstone block from Stikes dinosaur site, located on state land north of Arches National Park in 2014.