4000 10 000 2000 1000
Washington Oslo Adelaide St Petersburg
Mining Geology Mineralogy Geophysics
Oxides Phosphates Sulphates Carbonates
Parker Cleaveland George Jarvis Brush James Dwight Dana Benjamin Silliman
Crystal Structure Impurity levels Carbon isotope Electron numbers
Rock Salt Water Ice Salt
Polyphones Polymorphs Polygons Polyglots
Organic Inorganic Solid Crystal Structure
Carbonates Halides Sulphates Silicates