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  2. Dolomite (rock) - Wikipedia

    en.wikipedia.org/wiki/Dolomite_(rock)

    Dolomite (also known as dolomite rock, dolostone or dolomitic rock) is a sedimentary carbonate rock that contains a high percentage of the mineral dolomite, CaMg(CO 3) 2. It occurs widely, often in association with limestone and evaporites , though it is less abundant than limestone and rare in Cenozoic rock beds (beds less than about 66 ...

  3. Dolomite (mineral) - Wikipedia

    en.wikipedia.org/wiki/Dolomite_(mineral)

    Dolomite (/ ˈ d ɒ l. ə ˌ m aɪ t, ˈ d oʊ. l ə-/) is an anhydrous carbonate mineral composed of calcium magnesium carbonate, ideally CaMg(CO 3) 2. The term is also used for a sedimentary carbonate rock composed mostly of the mineral dolomite (see Dolomite (rock) ).

  4. Hardnesses of the elements (data page) - Wikipedia

    en.wikipedia.org/wiki/Hardnesses_of_the_elements...

    Download as PDF; Printable version; In other projects ... Mohs hardness of materials (data page) ... Toggle the table of contents.

  5. Mohs scale - Wikipedia

    en.wikipedia.org/wiki/Mohs_scale

    Hardness may be difficult to determine, or may be misleading or meaningless, if a material is a mixture of two or more substances; for example, some sources have assigned a Mohs hardness of 6 or 7 to granite but it is a rock made of several minerals, each with its own Mohs hardness (e.g. topaz-rich granite contains: topaz — Mohs 8, quartz ...

  6. Hardness comparison - Wikipedia

    en.wikipedia.org/wiki/Hardness_comparison

    A variety of hardness-testing methods are available, including the Vickers, Brinell, Rockwell, Meyer and Leeb tests. Although it is impossible in many cases to give an exact conversion, it is possible to give an approximate material-specific comparison table for steels .

  7. Marble - Wikipedia

    en.wikipedia.org/wiki/Marble

    Common marble varieties are granular limestone or dolomite. The hardness of marble is very high, because the internal structure of the rock is very uniform after long-term natural aging, and the internal stress disappears, so the marble will not be deformed due to temperature, and has strong wear resistance. It is a popular building material.

  8. Dolomite - Wikipedia

    en.wikipedia.org/wiki/Dolomite

    Dolomite may refer to: Dolomite (mineral), a carbonate mineral; Dolomite (rock), also known as dolostone, a sedimentary carbonate rock; Dolomite, Alabama, United States, an unincorporated community; Dolomite, California, United States, an unincorporated community; Dolomites, a section of the Alps; Lucanian Dolomites, a mountain range in ...

  9. Lannon stone - Wikipedia

    en.wikipedia.org/wiki/Lannon_stone

    Lannon stone is a type of buff-colored, blocky, sedimentary Dolomite (rock), whose name is derived from Mr. William Lannon, one of the original settlers of the Village of Lannon, Wisconsin. Lannon stone can be found throughout the Niagara Escarpment, which runs underneath much of the Great Lakes. Lannon stone is known for its durability and is ...