Area (4) Area (4) Rutile (3) Quartz (3) Fluids (3) Epidote (3) Calcite (3) temps (durée) (2) île (2) environnement (2) Composition (2) Parts (2) Parts (2) Hydrothermal alteration (2) Minerals (2) Zircon (2) Zeolites (2) Volcanic ash, tuff, etc (2) Veins (2) Time (2) Sulfides (2) Sphene (2) Smectite (2) Salt (2) Rocks (2) Nature and nurture (2) Hematite (2) Euthenics (2) Ecology (2) Crystals (2)