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 primary sulphides are believed to be genetically related in some fashion to these porphyries.
From The Economic Aspect of Geology by C. K. (Charles Kenneth) Leith
Among the other mineral products may also be mentioned the porphyries of the Limbara, the basalt of Nurri, Gestori, and Serri, the alabaster of Sarcidanu, and the marbles of the Goceano and Monte Raso.
From Rambles in the Islands of Corsica and Sardinia with Notices of their History, Antiquities, and Present Condition. by Thomas Forester
West of this line the island is composed chiefly of granite, with a large mass of granophyres, quartz porphyries and similar rocks forming the high mountains around Mt.
From Encyclopaedia Britannica, 11th Edition, Volume 7, Slice 4 "Coquelin" to "Costume" by Various
There are granites and porphyries, marbles and petrifactions of the most exquisite grain or tints.
From A Trip to Venus by John Munro
D'Orbigny considers the porphyries of the Andes to have been ejected at the close of the cretaceous period, and formed the first relief of the Cordillera.
From The Andes and the Amazon Across the Continent of South America by James Orton
