1. plural of picrite; dark-colored igneous rocks rich in olivine and pyroxene
Usage: geological

Examples

• The geologist collected samples of picrites from the volcanic outcrop.
• Picrites are commonly found in oceanic island settings.
• The laboratory analysis confirmed these rocks were picrites based on their mineral composition.
• Ancient picrites provide clues about early Earth’s mantle composition.
• The field guide helped students identify picrites among other igneous rocks.