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Three precious metals found in Earth's interior. Aquelium is a bright green metal derived from the interior ocean, and terrelium is a vermilion metal found only in Atvatabar. When these two metals come in contact, they produce a harnessable form of energy called magnicity. Arenak Skylark: A synthetic metal made by Osnomians.
Ancient Greek mythic-cultural cosmology depicted a decline from a golden age to a silver age followed by an Iron Age. In some variants there is a Bronze Age, an interim between the Iron Age and Silver Age. In Japan, the traditional Sho Chiku Bai (松竹梅) ranking system has a hierarchy of pine 松 (matsu), bamboo 竹 (take), and plum 梅 (ume ...
Palladium is a chemical element; it has symbol Pd and atomic number 46. It is a rare and lustrous silvery-white metal discovered in 1802 by the English chemist William Hyde Wollaston. He named it after the asteroid Pallas (formally 2 Pallas), which was itself named after the epithet of the Greek goddess Athena, acquired by her when she slew Pallas.
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Orichalcum or aurichalcum / ˌ ɔːr ɪ ˈ k æ l k ə m / is a metal mentioned in several ancient writings, including the story of Atlantis in the Critias of Plato.Within the dialogue, Critias (460–403 BC) says that orichalcum had been considered second only to gold in value and had been found and mined in many parts of Atlantis in ancient times, but that by Critias's own time, orichalcum ...
The platinum-group metals [a] (PGMs) are six noble, precious metallic elements clustered together in the periodic table. These elements are all transition metals in the d-block (groups 8, 9, and 10, periods 5 and 6). [1] The six platinum-group metals are ruthenium, rhodium, palladium, osmium, iridium, and platinum.
The best known precious metals are the precious coinage metals, which are gold and silver. Although both have industrial uses, they are better known for their uses in art , jewelry , and coinage. Other precious metals include the platinum group metals: ruthenium , rhodium , palladium , osmium , iridium , and platinum , of which platinum is the ...
Palladium was in a residue left behind after platinum was precipitated out of a solution of hydrochloric acid and nitric acid as (NH 4)PtCl 6. [12] Wollaston named it after the recently discovered asteroid 2 Pallas and anonymously sold small samples of the metal to a shop, which advertised it as a "new noble metal" called "Palladium, or New ...