Specific weight 21.45 g/cm³
Melting point 1768.3 °C
Mohs hardness 3.5
Element symbol Pt of platinum (lat.)

Platinum is a very heavy, gray-white metal with remarkable corrosion resistance. It is very malleable and ductile. Its hypoallergenic property makes it suitable for particularly sensitive jewelry wearers. The dignified metal is found in many countries of the world. Next to platinum in the periodic table are its secondary metals, some of which have similar properties and are also processed into jewelry; rhodium, for example, is used to refine white gold alloys because of its white color.  Other platinum by-metals are:  Palladium, Ruthenium, Iridium and Osmium. 
The name platinum (in Latin platinum) is derived from the Spanish word “platina”, as a diminutive of “plata” for silver.