This cooling liquid formed a very hard rock known as granite.

VOA: special.2009.01.07

His coronary arteries were hard as a rock and filled with calcium.

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Meeting women's representatives at the Gorki presidential residence near Moscow, Mr Medvedev said that as a schoolboy he had mainly listened to "rock music and hard rock".

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But as data caps fall and prices go up, many consumers find themselves between a rock and a hard place.

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