A type of igneous rock that lacks the usual ordered crystal structure found in porphyritic rocks.
From Greek 'an-' (without) + 'orthos' (correct) + 'porphyra' (purple, referring to porphyritic texture). It's a specialized mineralogical term describing rocks with irregular crystalline patterns.
Geologists use this term for rocks that defy the expected patterns—it's like finding a fingerprint that doesn't match the usual categories, which helps scientists understand unusual cooling conditions deep underground.
Complete word intelligence in one call. Free tier — 50 lookups/day.