The fineness of the ash in this case is unusual, says Thorvaldur Thordarson, an Icelandic volcanologist.

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The Vellus Aureum wool fibers must measure a mere 13.9 microns (closer to the fineness of a cobweb).

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If nothing else, does anyone at the Fed know the quality and fineness of the gold at Fort Knox?

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But Gaddis has written with care and elegance, and he has produced a biography whose fineness is worthy of its subject.

NEWYORKER: Getting Real

Two days earlier, it had scooped some sand from a drift, sieved it to a fineness of less than a hundred and fifty microns, and dropped a portion half the size of a baby aspirin into a funnel on its back.

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The Tibetan antelope, hunted almost to extinction for the fineness of its fur, remained his favourite cause, and he went to the icy plateau to burn sequestered skins himself though, to his sorrow, he could not stop the disbanding of the heroic anti-poaching brigade and the transfer of patrols to corruptible local officials.

ECONOMIST: Liang Congjie