MARK A. SCHNEIDER / SCIENCE PHOTO LIBRARY MARK A. SCHNEIDER / SCIENCE PHOTO LIBRARY
Amethyst is a violet variety of quartz often used in jewellery. Amethyst is the purple variety of quartz (SiO2), containing an impurity of iron, which gives the violet colour to the mineral. The hardness of the mineral is the same as that of quartz, thus it is suitable for use in jewellery. This particular Amethyst specimen came from South Africa. Specimen Dimension: approximately 3 cm.
Model release not required. Property release not required.