porphyry
noun
a very hard rock, anciently quarried in Egypt, having a dark, purplish-red groundmass containing small crystals of feldspar.
porphyries
-
pluralof porphyry.plural
The grammatical form denoting more than one person, place, thing, or idea.
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
The same forces were probably active in other sections of the island, and the intrusion of Diorite porphyries in Santa Clara and other provinces probably took place during that period.
From The History of Cuba, vol. 1 by Willis Fletcher Johnson
The term "porphyry" as commonly used includes true porphyries, monzonites, granites, and other igneous rocks.
From The Economic Aspect of Geology by C. K. (Charles Kenneth) Leith
The grayer granites may often be used with good effect, as well as the coarse porphyries, when the gray is to be particularly warm.
From The Poetry of Architecture Or, the Architecture of the Nations of Europe Considered in its Association with Natural Scenery and National Character by John Ruskin
Amygdaloid occupies also a very large tract to the north, mingled with porphyries, conglomerates, and various other substances.
From The Conquest of Canada (Vol. 1 of 2) by George Warburton
There are granites and porphyries, marbles and petrifactions of the most exquisite grain or tints.
From A Trip to Venus by John Munro
