Abstract
Several studies have shown that bacteria can influence calcite (CaCO3) crystal growth, although little is known about the effects of bacteria on barite (BaSO4). Calcite and barite are found in comparable environments- namely under oceanic or sedimentary conditions. The purpose of this investigation is to determine the effects of a marine gram-negative bacterial strain on the growth and morphology of barite (BaSO4). Using an atomic and lateral force microscopy, we established the typical crystal growth pattern and step velocity in supersaturated BaSO4(aq) solution.
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