Figure 3From: A method for generating uniform size-segregated pyrite particle fractionsDry sieved samples after cleaning steps. a) Sedimentary pyrite sample SED-003 showed some improvement after the tetrabromoethane cleaning procedure, although particles smaller than the finest sieve size (44 μm) clearly still remain. b) Hydrothermal pyrite HY-002 showed little improvement after ultrasonication cleaning procedure. See text for details of procedures.Back to article page