DIRK WIERSMA / SCIENCE PHOTO LIBRARY DIRK WIERSMA / SCIENCE PHOTO LIBRARY
Andradite mineral. Andradite is a calcium-iron silicate mineral, belonging to the garnet group (Ca3.Fe2.Si3.O12). It belongs to the cubic crystal system, occurring as well-developed dodecahedral or trapezohedral crystals of yellow-green to brownish-green colour. It is formed in metamorphic as well as in alkaline igneous rocks. This sample, from Franklin, New Jersey, USA, is 18 centimetres across.
Model release not required. Property release not required.