(1) Convergent beam electron diffraction proves the crystalline nature of the spherical auriferous deposits.
(2) In the contaminated area, gold prospectors have been using mercury to separate gold from auriferous sand and rock powders for many years.
Riffle
Definition:
(n.) A trough or sluice having cleats, grooves, or steps across the bottom for holding quicksilver and catching particles of gold when auriferous earth is washed; also, one of the cleats, grooves, or steps in such a trough. Also called ripple.
Example Sentences:
(1) I'd wake up to a compact mirror held to my mouth, and someone riffling through the knicker drawer for the will.
(2) Even as a child, Lauren, the third of four children, had a fascination with clothes and their ability to transform people: he emulated the preppy look of New York’s rich kids and would later riffle through thrift shops for authentically distressed denim, cowboy boots and leather jackets.
(3) "I hope there is no return to the spirit of loadsamoney heartlessness – figuratively riffling banknotes under the noses of the homeless – and I hope that this time the Gordon Gekkos of London are conspicuous not just for their greed – valid motivator though greed may be for economic progress – as for what they give and do for the rest of the population, many of whom have experienced real falls in their incomes over the last five years."
(4) Each stream was divided into pool and riffle sections that were colonized by communities of periphyton and invertebrates.
(5) The 488-m long stream was composed of mud-bottomed pools alternating with gravel riffles.
(6) Its use is demonstrated with a comparison of biomass and neuromass distributions for a stream riffle ecosystem in the Huron River, southeastern Michigan.
(7) The vaccine failed to protect against a highly virulent form of E coli 06 (Riffle), possibly because the amount of antibody to its lipopolysaccharide was inadequate.
(8) I searched for some explanation for this overweening neediness, riffling the pages with rising desperation.