All facts and figures taken from Zoara
Platinum is a dense, lustrous, silvery-white malleable metal. In recent years, it has become one of the most popular precious metals used in fine jewellery.
It is the rarest and most expensive of the popular precious metals – much rarer than Gold. Due to its rarity and value, it is not readily available to mineral collectors and is seldom represented in in all but the highest-end mineral collections.
Chemical Formula: Pt
Color: Tin-white, silver-gray, steel-gray, dark gray
Hardness: 4 – 4.5
Crystal System: Isometric
Specific Gravity: 14 – 19
Tenacity: Ductile and malleable
Environment: Most often in placer deposits. The primary occurrence is in plutonic rocks such as Olivine.
Rock Type: Igneous, Sedimentary
Striking Features: Extreme heaviness, lack of tarnish, great malleability and ductility, and possible weak attraction to magnetic fields.