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Platinum is one of the least reactive of the noble metals. It is a silvery-gray, malleable, and ductile metal that is refractory to all known acids. It is also resistant to corrosion and tarnish, making it suitable for jewelry. In the pure form, it is very soft and is usually combined with other elements such as gold or palladium to increase its durability. Its unique properties make it desirable for medical and industrial applications as well as in fine jewelry.
Platinum is found mainly in ultra-mafic igneous rocks. It is associated with nickel and chromium as well as the rare metals iridium, osmium and ruthenium. In its natural state, platinum is fairly impure and is rarely found uncombined with other minerals. It has been used by pre-Columbian South American natives to produce artifacts. It was first referenced in European writings by Antonio de Ulloa in 1748.
Density is a measurement of how much mass an element packs into a particular volume. The density of platinum is 21.4. Pure platinum is a soft metal and must be hardened for practical use, so it is commonly mixed with other metals like gold to improve its strength and resistance. These alloys can also have different densities which can affect the melting point, boiling point and electrical conductivity of the finished product.
A platinum cube can be entered through the [Entrance Ticket: Cube]. It rewards the player with three times as much loot as a normal run. The chests will generally contain silver, a few engravings and [Eternity Essence]. It is possible to get Masterpieces, Honing Success Materials and card experience as well, however these rewards are rare.