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In 1983, the surrounding ca. 1676 Blackstone Block Street Network was also designated by the Boston Landmarks Commission. John and Ebenezer Hancock House, 10 Marshall Street. In the 17th century, the area that is now the Blackstone Block was adjacent to Town Cove, the major port facility of the town of Boston prior to the construction of Long ...
The pyramidion, carved out of single piece of basalt (often called black granite), is mostly intact apart from a broken corner. With a height of 1.40 metres (4.6 ft) and base length 1.85 metres (6.1 ft), it weighs around 4.5 tonnes (9,900 lb). The bottom edges are undercut to keep the block in position atop the pyramid. [2]
Stone has been used for carving since ancient times for many reasons. Most types of stone are easier to find than metal ores, which have to be mined and smelted. Stone can be dug from the surface and carved with hand tools. Stone is more durable than wood, and carvings in stone last much longer than wooden artifacts.
These ancient and medieval structures represent significant achievements of structural engineering and craftsmanship. [4] The effort expended often astonishes visitors, but seen from one aspect, a rock-cut structure is a decorated rock quarry; most of the stone removed was typically put to economic use elsewhere.
The Midas Monument, a Phrygian rock-cut tomb dedicated to Midas (700 BCE).. Ancient monuments of rock-cut architecture are widespread in several regions of world. A small number of Neolithic tombs in Europe, such as the c. 3,000 B.C. Dwarfie Stane on the Orkney island of Hoy, were cut directly from the rock, rather than constructed from stone blocks.
A 15-storey apartment building in La Tourette (Marseille), designed by Fernand Pouillon.Constructed using the massive precut stone method. Gobekli Tepe, early monumental Neolithic stonemasonry using flint-carved limestone columns (~9500 BCE) 12th-century stonemasonry at Angkor Wat Diamond-wire saw in use for quarrying marble Stonemason working with medieval tools Stonemasonry with andesite ...
Blackstone Historic District is a national historic district located at Blackstone, Nottoway County, Virginia. It encompasses 272 contributing buildings and 1 contributing structure in the town of Blackstone. They include residential and commercial structures dating from the late-18th to early-20th centuries.
The hardest stone frequently carved is granite, at about 8 on the Mohs scale. It is the most durable of sculptural stones and, correspondingly, an extremely difficult stone to work. [2] Basalt columns, being even harder than the granite, are less frequently carved. This stone takes on a beautiful black appearance when polished.