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porphyritic |
2 definitions found From Webster's Revised Unabridged Dictionary (1913) [web1913]: Porphyritic \Por`phy*rit"ic\, a. [Cf. F. porphyritique.] (Min.) 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. From WordNet r 1.6 [wn]: porphyritic adj : (of rocks) consisting of porphyry or containing large crystals in a fine groundmass of minerals
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