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  2. Philosopher's stone - Wikipedia

    en.wikipedia.org/wiki/Philosopher's_stone

    The philosopher's stone [a] is a mythic alchemical substance capable of turning base metals such as mercury into gold or silver [b]; it was also known as "the tincture" and "the powder". Alchemists additionally believed that it could be used to make an elixir of life which made possible rejuvenation and immortality .

  3. Chrysopoeia - Wikipedia

    en.wikipedia.org/wiki/Chrysopoeia

    Chrysopoeia. In alchemy, the term chrysopoeia (from Ancient Greek χρυσοποιία (khrusopoiía) 'gold-making') refers to the artificial production of gold, most commonly by the alleged transmutation of base metals such as lead. A related term is argyropoeia (from Ancient Greek ἀργυροποιία (arguropoiía) 'silver-making ...

  4. Projection (alchemy) - Wikipedia

    en.wikipedia.org/wiki/Projection_(alchemy)

    Projection was the ultimate goal of Western alchemy. Once the philosopher's stone or powder of projection had been created, the process of projection would be used to transmute a lesser substance into a higher form; often lead into gold. Typically, the process is described as casting a small portion of the Stone into a molten base metal.

  5. Alchemy - Wikipedia

    en.wikipedia.org/wiki/Alchemy

    [1] [4] [5] [n 1] Common aims were chrysopoeia, the transmutation of "base metals" (e.g., lead) into "noble metals" (particularly gold); [1] the creation of an elixir of immortality; [1] and the creation of panaceas able to cure any disease. [6] The perfection of the human body and soul was thought to result from the alchemical magnum opus ...

  6. Nuclear transmutation - Wikipedia

    en.wikipedia.org/wiki/Nuclear_transmutation

    The term transmutation dates back to alchemy.Alchemists pursued the philosopher's stone, capable of chrysopoeia – the transformation of base metals into gold. [3] While alchemists often understood chrysopoeia as a metaphor for a mystical or religious process, some practitioners adopted a literal interpretation and tried to make gold through physical experimentation.

  7. Chemistry: A Volatile History - Wikipedia

    en.wikipedia.org/wiki/Chemistry:_A_Volatile_History

    The results would have astounded him – the same elements that combined according to von Liebig's method, when combined according to Wöhler's method made two completely different compounds. Wöhler and von Liebig had inadvertently discovered isomerism : the same number of atoms of the same elements combining in different ways to make ...

  8. Chinese alchemy - Wikipedia

    en.wikipedia.org/wiki/Chinese_alchemy

    By refining bases into gold and ingesting the "fake" or synthetic gold as a prepared pill, or jindan (金丹), alchemists believed that immortal life would be delivered. . The idea that fake gold was superior to real gold arose because the alchemists believed the combination of a variety of substances (and the transformation of these substances through roasting or burning) gave the final ...

  9. Depletion gilding - Wikipedia

    en.wikipedia.org/wiki/Depletion_gilding

    The term depletion gilding usually refers to the production of a layer of gold. However, it can also be used to produce a layer that is an alloy of gold and silver, sometimes referred to as electrum. Certain chemicals, such as oxalic acid, attack copper but do not affect either silver or gold.