Example image of eyePlorer eyePlorer map for 'Petrography': Petrology Rock (geology) Mineral Rock microstructure Petrographic microscope Optical mineralogy Thin section Atomic absorption spectroscopy Electron microprobe X-ray fluorescence X-ray scattering techniques Fluid inclusions Acid Mohs scale of mineral hardness Goniometer Birefringence Canada balsam Isotropy Nicol prism Pleochroism Polarization Identification key Archaeology Pottery Ceramic Albert Streckeisen Alfred Harker (petrologist) Alphonse Francois Renard Arnold von Lasaulx Ferdinand Zirkel Frank Rutley Harry Rosenbusch Hyalopilitic Lucien Cayeux W. F. Gisolf Felsite G. W. Card Poikilitic Stone quarries of ancient Egypt Alfred Elis Törnebohm Aristides Brezina Bird's eye maple (mineral property) Glass with embedded metal and sulfides Harker Glacier John Johnston O'Neill Mount Harker Enstatite Gustav Tschermak von Seysenegg Igneous petrology Microscope slide