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  2. Polygonal masonry - Wikipedia

    en.wikipedia.org/wiki/Polygonal_masonry

    Polygonal masonry is a technique of stone wall construction. True polygonal masonry is a technique wherein the visible surfaces of the stones are dressed with straight sides or joints, giving the block the appearance of a polygon.

  3. Stone wall - Wikipedia

    en.wikipedia.org/wiki/Stone_wall

    The first stone walls were constructed by farmers and primitive people by piling loose field stones into a dry stone wall. Later, mortar and plaster were used, especially in the construction of city walls, castles, and other fortifications before and during the Middle Ages. These stone walls are spread throughout the world in different forms.

  4. Greywacke - Wikipedia

    en.wikipedia.org/wiki/Greywacke

    Greywacke or graywacke (German grauwacke, signifying a grey, earthy rock) is a variety of sandstone generally characterized by its hardness (6–7 on Mohs scale), dark color, and poorly sorted angular grains of quartz, feldspar, and small rock fragments or sand-size lithic fragments set in a compact, clay-fine matrix.

  5. List of sandstones - Wikipedia

    en.wikipedia.org/wiki/List_of_sandstones

    This is a list of types of sandstone that have been or are used economically as natural stone for building and other commercial or artistic purposes. Trans-regional [ edit ]

  6. Aquia Creek sandstone - Wikipedia

    en.wikipedia.org/wiki/Aquia_Creek_sandstone

    Aquia Creek sandstone is a brown to light-gray freestone used extensively in building construction in Washington, D.C. in the late 18th and early 19th centuries. Quarried at Aquia Creek in Stafford County, Virginia , the stone was valuable for its ease of shaping and the quarry's proximity to the tidewater portion of the Potomac River , 45 ...

  7. Roughcast - Wikipedia

    en.wikipedia.org/wiki/Roughcast

    Variety can be obtained on the surface of the wall by small pebbles of different colours, and in the Tudor period fragments of glass were sometimes embedded. [ 2 ] Though it is an occasional home-design fad, its general unpopularity in the UK as of 2006 [update] was estimated to reduce the value of a property by up to 5%. [ 3 ]

  8. Sandstone - Wikipedia

    en.wikipedia.org/wiki/Sandstone

    Sandstone is a clastic sedimentary rock composed mainly of sand-sized (0.0625 to 2 mm) silicate grains, cemented together by another mineral. Sandstones comprise about 20–25% of all sedimentary rocks. [1] Most sandstone is composed of quartz or feldspar, because they are the most resistant minerals to the weathering processes at the Earth's ...

  9. Carrstone - Wikipedia

    en.wikipedia.org/wiki/Carrstone

    Carrstone (or carstone, also known as Silsoe, heathstone, ironstone or gingerbread) is a sedimentary sandstone conglomerate formed during the Cretaceous period. It varies in colour from light to dark rusty ginger. Used as a building stone it can be found in Bedfordshire, Cambridgeshire and extensively in the historic buildings of northwest ...