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  2. Removal of Hell Gate rocks - Wikipedia

    en.wikipedia.org/wiki/Removal_of_Hell_Gate_rocks

    A patent was issued for the detonating device. After the explosion, the rock debris was dredged and dropped into a deep part of the river. This was not repeated at the later Flood Rock explosion. On October 10, 1885, the Corps carried out the largest explosion in this process, annihilating Flood Rock with 300,000 pounds (140,000 kg) of ...

  3. Armourstone - Wikipedia

    en.wikipedia.org/wiki/Armourstone

    Armourstone along the sea wall south of Dawlish Warren (UK) 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.

  4. List of largest monoliths - Wikipedia

    en.wikipedia.org/wiki/List_of_largest_monoliths

    250–300 t [32] Western Stone, Temple Mount Block Jerusalem, Israel [33] Herod, King of Judea during the Second Temple period Weight is disputed; a 2006 analysis estimated the depth of this stone at only 1.8–2.5 m, for a weight of 250–300 t. [32] Weight formerly said to be 550 to 600 t. [34] [35] 230 t [36] Mausoleum of Theodoric: Roof ...

  5. Armor (hydrology) - Wikipedia

    en.wikipedia.org/wiki/Armor_(hydrology)

    Armour of basalt blocks. In hydrology and geography, armor is the association of surface pebbles, rocks or boulders with stream beds or beaches.Most commonly hydrological armor occurs naturally; however, a man-made form is usually called riprap, when shorelines or stream banks are fortified for erosion protection with large boulders or sizable manufactured concrete objects.

  6. How Much Is a Meteorite Worth? - AOL

    www.aol.com/finance/much-meteorite-worth...

    That’s over $15,000 per pound! Pieces of Mars rock can command similar prices, with a 4.25-pound piece selling for $63,000, approximately $15,000 per pound. Meteorites from the Moon are even ...

  7. River gravel - Wikipedia

    en.wikipedia.org/wiki/River_gravel

    River gravel is a name given to gravel composed of small pieces of rounded stone of various colors, usually no larger than a large coin. [1] It is named for the effect of many years of rounding of the edges of the stones due to a flow of water over it, as often takes place in a river . [ 2 ]

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