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  2. Erdstall - Wikipedia

    en.wikipedia.org/wiki/Erdstall

    A slip passage at Rot am See has been enhanced with stones to make it narrower with the stone additions dated to between 1034 and 1268. Coal from Trebersdorf was dated 950 to 1050, coal from Kühlried was dated to 950 to 1160. Ceramics found in St. Agatha have been dated to the 12th century, which seems to be the latest date of usage.

  3. Curse LLC - Wikipedia

    en.wikipedia.org/wiki/Curse_LLC

    Curse was a gaming company that managed the video game mod host CurseForge, wiki host Gamepedia, and the Curse Network of gaming community websites.. The company was headquartered in Huntsville, Alabama, and had offices in San Francisco, New York City, Los Angeles, Brighton, and Berlin.

  4. Terraria - Wikipedia

    en.wikipedia.org/wiki/Terraria

    In October 2013, Re-Logic released version 1.2 for Terraria on Windows. The update added a host of new mechanics, gameplay changes, and graphics adjustments. [34] After the 1.2 update was released the game returned to receiving continuous updates. [35] [36] The console and mobile versions received the update in 2014.

  5. Tufa - Wikipedia

    en.wikipedia.org/wiki/Tufa

    Tufa columns at Mono Lake, California. Tufa is a variety of limestone formed when carbonate minerals precipitate out of water in unheated rivers or lakes. Geothermally heated hot springs sometimes produce similar (but less porous) carbonate deposits, which are known as travertine or thermogene travertine.

  6. Turquoise - Wikipedia

    en.wikipedia.org/wiki/Turquoise

    Turquoise is an opaque, blue-to-green mineral that is a hydrous phosphate of copper and aluminium, with the chemical formula Cu Al 6 (PO 4) 4 8 ·4H 2 O.It is rare and valuable in finer grades and has been prized as a gemstone for millennia due to its hue.

  7. Amazonite - Wikipedia

    en.wikipedia.org/wiki/Amazonite

    Amazonite, also known as amazonstone, [4] is a green tectosilicate mineral, a variety of the potassium feldspar called microcline. [4] [5] [6] Its chemical formula is KAlSi 3 O 8, [1] [7] which is polymorphic to orthoclase.

  8. Armourstone - Wikipedia

    en.wikipedia.org/wiki/Armourstone

    Armourstone is a generic term for broken stone with stone masses between 100 and 10,000 kilograms (220 and 22,050 lb) (very coarse aggregate) that is suitable for use in hydraulic engineering. Dimensions and characteristics for armourstone are laid down in European Standard EN13383. [ 1 ]

  9. Brownstone - Wikipedia

    en.wikipedia.org/wiki/Brownstone

    In the 19th century, Basswood Island, Wisconsin was the site of a quarry run by the Bass Island Brownstone Company, which operated from 1868 into the 1890s.The brownstone from this and other quarries in the Apostle Islands was in great demand, with brownstone from Basswood Island being used in the construction of the first Milwaukee County Courthouse in the 1860s.