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{%type%} Definitions

WordNet 3.0Copyright Princeton University


Short "hint"

n. - Any igneous rock with crystals embedded in a finer groundmass of minerals.

Usage examples (34)
  • Rhenium is obtained almost exclusively as a by-product of the processing of a special type of copper deposit known as a porphyry copper deposit.
  • The principal measured reserves are in the so-called porphyry coppers of the United States and Chile.
  • The porphyry, which is of warm brown or chocolate colour, includes many crystals of lighter coloured felspar, and dark crystals of hornblende.
  • The so-called porphyry copper mines, which now produce more than half the world's copper, are worth looking at in the context of exploitation limits. for more
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