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  2. Turquoise - Wikipedia

    en.wikipedia.org/wiki/Turquoise

    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(OH)8·4 H 2 O. It is rare and valuable in finer grades and has been prized as a gemstone for millennia due to its hue.

  3. Countertop - Wikipedia

    en.wikipedia.org/wiki/Countertop

    Cultured marble countertops are made by mixing high strength polyester resin and real marble stone dust. The combination is then formulated with additional chemicals and poured into a cast mold. These molds can ultimately produce bathtubs, whirlpool decks, shower pans, window sills, and even vanity tops. The finished material is significantly ...

  4. Marble - Wikipedia

    en.wikipedia.org/wiki/Marble

    Marble is a metamorphic rock consisting of carbonate minerals (most commonly calcite (CaCO 3) or dolomite (CaMg (CO 3) 2) that have recrystallized under the influence of heat and pressure. [1] It has a crystalline texture, and is typically not foliated (layered), although there are exceptions. In geology, the term marble refers to metamorphosed ...

  5. David (Michelangelo) - Wikipedia

    en.wikipedia.org/wiki/David_(Michelangelo)

    David is a masterpiece of Italian Renaissance sculpture in marble [1] [2] created from 1501 to 1504 by Michelangelo.With a height of 5.17 metres (17 ft 0 in), the David was the first colossal marble statue made in the High Renaissance, and since classical antiquity, a precedent for the 16th century and beyond.

  6. Composite material - Wikipedia

    en.wikipedia.org/wiki/Composite_material

    A black carbon fibre (used as a reinforcement component) compared to a human hair. Composites are formed by combining materials together to form an overall structure with properties that differ from that of the individual components. A composite material (also called a composition material or shortened to composite, which is the common name) is ...

  7. Engineered stone - Wikipedia

    en.wikipedia.org/wiki/Engineered_stone

    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]

  8. Carrara marble - Wikipedia

    en.wikipedia.org/wiki/Carrara_marble

    Carrara marble, or Luna marble (marmor lunense) to the Romans, is a type of white or blue-grey marble popular for use in sculpture and building decor. It has been quarried since Roman times in the mountains just outside the city of Carrara in the province of Massa and Carrara in the Lunigiana , the northernmost tip of modern-day Tuscany , Italy.

  9. List of types of marble - Wikipedia

    en.wikipedia.org/wiki/List_of_types_of_marble

    Marble from Fauske Municipality in Norway Blocks of Carrara marble in Italy. The following is a list of various types of marble according to location. (NB: Marble-like stone which is not true marble according to geologists is included, but is indicated by italics with geologic classification given as footnote.