Lava with Leucite. Mount Vesuvius. Campania. Italy - Lava - Lava - Volcanic rock - Igneous or Magmatic rock - Rocks and Petrology - Photos
ALEX STREKEISEN-Leucite-
Leucite
Minerals in rock sections; the practical methods of identifying minerals in rock sections with the microscope, especially arranged for students in technical and scientific schools . hence rather rough surface. Betweencrossed nicols