The iron oxide minerals identified usually occur in granitic pegmatites, but here they appeared in an emerald that also hosted pyrite ... crystal. Many of these emeralds also contained a tiny dark ...

One longstanding problem has sidelined life-saving drugs, stalled next-generation batteries, and kept archaeologists from ...

Institute for Physical Chemistry, Justus Liebig University Giessen, Giessen 35392, Germany Center for Materials Research (ZfM), Justus Liebig University Giessen, Giessen 35392, Germany Institute for ...