Rates are quoted in us dollars per Troy ounce on the world market of precious metals today: 15/11/2024
Platinum (Pt) is a chemical element of the 10th group (according to the older classification — side subgroup of the eighth group), the 6th period of the periodic system of chemical elements D. I. Mendeleev, with atomic number 78, noble metal is a brilliant silvery-white color.
Platinum was not known until the middle of the XVI century, but in the Andes (Inca and chibcha) had used it since time immemorial, the first Europeans who learned about the plate in the middle of the sixteenth century, the conquistadors were, and platinum is one of the rarest metals on the planet, the melting temperature is 1768,3 °C, a density of 21.45 g/cm3.
Troy ounce is a unit of mass equal to 31,1034768 grams.
Noble metals — metals that are not subject to corrosion and oxidation, this property distinguishes them from most "noble" metals, they are also precious metals due to their rarity.