atomic weightatredaduriouatriumatrophyattached scarattackattakolite or attacolite or attacoliteattari fault or attari or attariattenuationattenuation coefficientattenuation constantattenuation distanceatterberg flacon or atterberg or atterbergatterberg grade scale or atterberg or atterbergattic orogenyattitudeattractionattraction poleattributeattribute accuracyattribute matchingattrital or coal or coalattritionattrition testau or gold or goldaubelaubertiteaubuaubueaubugoaufeisaufwuchsaugeliteaugen gneissaugen or augen structure or augen structureaugen schistaugen structureaugerauger boring or boring or boring or augerauger drillauger drillingauger spectrumauger type bitaugiteaureoleaureole grouthingauricaurichalciteauricleauricula