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  2. Mons Porphyrites - Wikipedia

    en.wikipedia.org/wiki/Mons_Porphyrites

    The highest quarries were at Rammius at 1,438 metres (4,718 ft). Quarried stone had to be dropped down slipways to the wadi below. [6] The central complex had a workers' settlement, a fort, temples to Sarapis and Isis Megiste, a bath with a hypocaust and a cemetery. [1] [7] The temple of

  3. Fort Riley Limestone - Wikipedia

    en.wikipedia.org/wiki/Fort_Riley_Limestone

    The Fort Riley Limestone is a Kansas Permian stratigraphic unit of member rank and historic building stone, sold commercially as fine-grained Silverdale, having at one time been quarried at Silverdale, Kansas. [4]

  4. List of quarries in the United States - Wikipedia

    en.wikipedia.org/wiki/List_of_quarries_in_the...

    According to Marble.com, in 2016 there were 276 quarries producing natural stone in 34 states, and states producing the most granite were Texas, Massachusetts, Indiana, Wisconsin, and Georgia. [1] The term "quarry" refers also to sites producing aggregate, molding sand, or other resources besides cut stone.

  5. Kentish ragstone - Wikipedia

    en.wikipedia.org/wiki/Kentish_ragstone

    The quarry is now a Site of Nature Conservation Importance (SNCI). Public access is free. [26] The quarry is also a prime location for geological research and provides opportunities for field studies in a variety of disciplines: sedimentology, stratigraphy, palaeontology, geography, and industrial archaeology. Several features make this a ...

  6. Combe Down and Bathampton Down Mines - Wikipedia

    en.wikipedia.org/wiki/Combe_Down_and_Bathampton...

    Stone was extracted by the "room and pillar" method, by which chambers were mined, leaving pillars of stone to support the roof. [1] These mines were once owned by Postmaster General Ralph Allen (1694–1764). The mines contain a range of features including well preserved tramways, cart-roads and crane bases.

  7. Quarries of the Mendip Hills - Wikipedia

    en.wikipedia.org/wiki/Quarries_of_the_Mendip_Hills

    As stone transportation is expensive, the Mendips, and Leicestershire, are important as the nearest sources of hard stone for London and the South East. The Mendip quarries produce twelve million tonnes of stone a year, employ two thousand people, and have an annual turnover of £150m. [ 2 ]

  8. Unfinished obelisk - Wikipedia

    en.wikipedia.org/wiki/Unfinished_obelisk

    The unfinished obelisk is the largest known ancient obelisk [citation needed] and is located in the northern region of the stone quarries of ancient Egypt in Aswan, Egypt. It was studied in detail by Reginald Engelbach in 1922. [1] The unfinished obelisk in its quarry at Aswan, 1990

  9. Geology of Alderley Edge - Wikipedia

    en.wikipedia.org/wiki/Geology_of_Alderley_Edge

    The building stone represents a particular lithology of medium grained massive sandstones within the Keuper Sandstone and may not always lie at precisely the same horizon. It seems likely that the rock quarried in the northern part of the district is the lateral equivalent in part at any rate to the conglomerates of Alderley Edge which die out ...