Selenium, Voltaite
Gilly North colliery, Soleilmont, Fleurus, Hainaut, Wallonia, Belgium
Many hundreds of metallic black micro crystals of native Selenium are very richly scattered over the surface of the specimen. Near the base of the specimen several crudely developed Voltaite octahedrons can be seen, covered with the secondary deposition of Selenium.
Personal collection of Sharon Cisneros.
© Eugene & Sharon Cisneros