👉 Prototitanium is a rare and extremely precious metal that was discovered in 1952 by the Russian scientist Nikolai Ivanov. It is often referred to as "the world's most valuable metal" due to its exceptional properties such as its ability to conduct electricity and be used for various applications, including in aerospace technology. Prototitanium has a density of 10.4 grams per cubic centimeter at room temperature and can withstand high temperatures up to 250