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  2. Patuxent River stone - Wikipedia

    en.wikipedia.org/wiki/Patuxent_River_Stone

    Tumbled specimens of Patuxent River Stone Maryland Agate cut and Illuminated. The Patuxent River stone is the state gem (a form of agate) of the U.S. state of Maryland. Since it is found in red and orange this stone could also be referred to as carnelian. [1] It is found only in Maryland, and its colors reflect the Maryland state flag.

  3. Seneca Quarry - Wikipedia

    en.wikipedia.org/wiki/Seneca_Quarry

    The quarry was the source of stone for two Potomac River canals: the Patowmack Canal (opened in 1802, and officially known as the Great Falls Skirting Canal) on the Virginia side of Great Falls; and the C&O Canal, having supplied red sandstone for the latter for locks 9, 11, 15 - 27, and 30, the accompanying lock houses, and Aqueduct No. 1 ...

  4. Bretonstone - Wikipedia

    en.wikipedia.org/wiki/Bretonstone

    Bretonstone, also known as vibro-compression under vacuum, is a formerly-patented technology [2] [3] invented in the early-1970s [citation needed] by Breton S.p.A. [4]Nowadays most manufacturers of engineered stone use similar technology, typically involving quartz and a resin binder combined under vacuum, and compressed under heat into a desired form such as a countertop slab.

  5. Cockeysville Marble - Wikipedia

    en.wikipedia.org/wiki/Cockeysville_Marble

    The Cockeysville Marble has been quarried in Beaver Dam within Cockeysville and other locations in Maryland. A historical account is given in Maryland Geological Survey Volume Two. [3] The Cockeysville was also mined for crushed stone at what is now called Quarry Lake. [4] It was known as the McMahon Quarry in the 1940s.

  6. Third Addition to Rockville and Old St. Mary's Church and ...

    en.wikipedia.org/wiki/Third_Addition_to_Rockville...

    The Third Addition to Rockville and Old St. Mary's Church and Cemetery is a historic area located in Rockville, Montgomery County, Maryland.This area combines 19th century residential scale buildings with a tree-lined narrow street, country church, weathered headstones, Victorian Gothic railroad station, and a brick cast-iron front commercial structure, to create an atmosphere that evokes the ...

  7. Sett (paving) - Wikipedia

    en.wikipedia.org/wiki/Sett_(paving)

    A sett, also known as a block or Belgian block, [1] is a broadly rectangular quarried stone used in paving roads and walkways. [ 2 ] [ 3 ] Formerly in widespread use, particularly on steeper streets because setts provided horses' hooves with better grip than a smooth surface, they are now encountered more usually as decorative stone paving in ...

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  9. Engineered stone - Wikipedia

    en.wikipedia.org/wiki/Engineered_stone

    Engineered stone is a composite material made of crushed stone bound together by an adhesive to create a solid surface. The adhesive is most commonly polymer resin, with some newer versions using cement mix. This category includes engineered quartz (SiO 2), polymer concrete and engineered marble stone. [1]