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  2. History of metallurgy in China - Wikipedia

    en.wikipedia.org/wiki/History_of_metallurgy_in_China

    As the name suggests, the lost-wax method is to use wax as a mold, and heat it to melt the wax mold and lose it, thereby casting bronze ware, making the model (the outer layer of the wax model is coated with mud), lost-wax (heating to make the wax flow out), pouring copper liquid to fill the cavity left by the wax model, etc.

  3. Metals of antiquity - Wikipedia

    en.wikipedia.org/wiki/Metals_of_antiquity

    The earliest gold artifacts were discovered at the site of Wadi Qana in the Levant. [13] Silver is estimated to have been discovered in Asia Minor shortly after copper and gold. [14] There is evidence that iron was known from before 5000 BC. [15] The oldest known iron objects used by humans are some beads of meteoric iron, made in Egypt in ...

  4. Metallurgy in pre-Columbian Mesoamerica - Wikipedia

    en.wikipedia.org/wiki/Metallurgy_in_pre...

    West Mexican smiths worked primarily in copper during the initial period, with some low-arsenic alloys, as well as occasional employment of silver and gold. Lost-wax cast bells were introduced from lower Central America and Colombia during this phase, along with several classes of cold-worked ornaments and hand tools, such as needles and tweezers.

  5. Archaeology of Igbo-Ukwu - Wikipedia

    en.wikipedia.org/wiki/Archaeology_of_Igbo-Ukwu

    Excavations revealed more than 700 high quality artifacts of copper, bronze and iron, as well as about 165,000 glass, carnelian and stone beads, pottery, textiles and ivory beads, cups, and horns. The bronzes include numerous ritual vessels, pendants, crowns, breastplates, staff ornaments, swords, and fly-whisk handles.

  6. Discovery of chemical elements - Wikipedia

    en.wikipedia.org/wiki/Discovery_of_chemical_elements

    The earliest gold artifacts were discovered at the site of Wadi Qana in the Levant. [11] Recognised as an element by Guyton de Morveau, Lavoisier, Berthollet, and Fourcroy in 1787. [1] 47 Silver: Before 5000 BC ca. 4000 BC Asia Minor: Asia Minor: Estimated to have been discovered in Asia Minor shortly after copper and gold.

  7. Lost-wax casting - Wikipedia

    en.wikipedia.org/wiki/Lost-wax_casting

    Lost-wax casting – also called investment casting, precision casting, or cire perdue (French: [siʁ pɛʁdy]; borrowed from French) [1] – is the process by which a duplicate sculpture (often a metal, such as silver, gold, brass, or bronze) is cast from an original sculpture. Intricate works can be achieved by this method.

  8. Archaeologists Just Discovered An Ancient Greek Temple Filled ...

    www.aol.com/archaeologists-just-discovered...

    The team found Corinthian alabaster, Attic vases, and locally-made ritual jugs. They also uncovered treasure of a shinier kind: gold, silver, coral, and amber jewelry, amulets from the East, and ...

  9. Tumbaga - Wikipedia

    en.wikipedia.org/wiki/Tumbaga

    Tumbaga objects were often made using a combination of the lost wax technique and depletion gilding. An alloy of varying proportions of copper, silver, and gold (typically in a percentage ratio of 80:15:5) was cast. It was burned after removal, turning surface copper into copper oxide, which was mechanically removed.