Porphyry

Definition of Porphyry

Por´phy`ry

n.

1.

(Geol.) A term used somewhat loosely to designate a rock consisting of a fine-grained base (usually feldspathic) through which crystals, as of feldspar or quartz, are disseminated. There are red, purple, and green varieties, which are highly esteemed as marbles.

Porphyry shell
(Zool.) a handsome marine gastropod shell (Oliva porphyria), having a dark red or brown polished surface, marked with light spots, like porphyry.

Related Words

groundmass, igneous rock, porphyritic rock

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Porkwood
Pornerastic
Pornographic
Pornography
Porosity
Porotic
Porotype
Porous
Porously
Porousness
Porpentine
Porpesse
Porphyraceous
Porphyre
Porphyrite
Porphyritic
Porphyritic granite
Porphyrization
Porphyrize
Porphyrogenitism
-Porphyry-
Porphyry shell
Porpita
Porpoise
Porporino
Porpus
Porraceous
Porrect
Porrection
Porret
Porridge
Porringer
Port
Port arms
Port bar
Port charges
Port Jackson shark
Port lid
Port of entry
Port toll
Port warden

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