porphyritic
adjective
- of porphyry
- like porphyry; having distinct crystals in a fine-grained mass
See porphyritic in American Heritage Dictionary 4
(pôrˌfə-rĭtˈĭk) also por·phy·rit·i·cal (-ĭ-kəl)
adjective- Of or containing porphyry.
- Containing relatively large isolated crystals in a mass of fine texture.
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