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  2. Marble - Wikipedia

    en.wikipedia.org/wiki/Marble

    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 ...

  3. 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 ...

  4. 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]

  5. Synthetic diamond - Wikipedia

    en.wikipedia.org/wiki/Synthetic_diamond

    Synthetic diamond. Lab-grown diamonds of various colors grown by the high-pressure-and-temperature technique. Laboratory-grown ( LGD ), also called lab-grown diamond, [ 1] laboratory-created, man-made, artisan-created, artificial, synthetic, or cultured diamond, is diamond that is produced in a controlled technological process (in contrast to ...

  6. Alabaster - Wikipedia

    en.wikipedia.org/wiki/Alabaster

    In archaeology, the term alabaster includes objects and artefacts made from two different minerals: (i) the fine-grained, massive type of gypsum, [ 1] and (ii) the fine-grained, banded type of calcite. [ 2] Chemically, gypsum is a hydrous sulfate of calcium, whereas calcite is a carbonate of calcium. [ 2] [ 3] As types of alabaster, gypsum and ...

  7. 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.

  8. Marble sculpture - Wikipedia

    en.wikipedia.org/wiki/Marble_sculpture

    Marble is a metamorphic rock derived from limestone, composed mostly of calcite (a crystalline form of calcium carbonate, CaCO 3).The original source of the parent limestone is the seabed deposition of calcium carbonate in the form of microscopic animal skeletons or similar materials.

  9. 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.

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