Platinum

 

Found in large placer deposits during the 16th century Spanish conquest of South America, this mineral was called “platina del Pinto” after the Rio Pinto, Columbia. The uses of this mineral depend chiefly upon its high melting point, resistance to chemical attack, and superior hardness. It is used in dentistry, surgical instruments, and jewelry.

Mineral Photos courtesy of R.Weller/Cochise College