porphyritic
Adjective
Meaning
Relating to, or resembling, porphyry, that is, characterized by the presence of distinct crystals, as of feldspar, quartz, or augite, in a relatively fine-grained base, often aphanitic or cryptocrystalline.
Source: Webster's dictionarySynonyms
rocky
sandy
crystal
stony
porphyry
crystalline
monolithic
gritty
craggy
pebbly
gravelly
igneous rock
porphyrin
shingled
porphyric
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Antonyms
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Gabbro is usually equigranular in texture, although it may be porphyritic at times, especially when plagioclase oikocrysts have grown earlier than the groundmass minerals.
In this connection we may repeat what has been said above about the corrosion of porphyritic minerals in igneous rocks.