DIRK WIERSMA / SCIENCE PHOTO LIBRARY DIRK WIERSMA / SCIENCE PHOTO LIBRARY
Native silver crystals (grey) on a block of ankerite mineral. Silver is sometimes mined in its native form, but often as ore. Because of its high electrical conductivity, silver has a wide range of applications in industry. It is also a valuable precious metal. This sample measures 45 millimetres across.
Model release not required. Property release not required.