Koji (2) Minerals (2) Soils (2) tropiques (1) température (1) région (1) cendre (1) minéral (1) incorporation (1) poussière (1) argile (1) Strasbourg (1) Paris (1) Dissolution (1) Charts, diagrams, etc (1) X-rays (1) Vermiculite (1) Tropics (1) Temperature (1) Spectrum analysis (1) Soils (1) Soil science (1) Sodium (1) Silicates (1) Silica (1) Science (1) Rain and rainfall (1) Phyllosilicates (1) Petrology (1) Ores (1)