1. of, relating to, or composed of aplite; characterized by a fine-grained, light-colored igneous rock texture
Usage: geology; technical

Examples

• The aplitic granite showed a distinctly fine-grained texture under the microscope.
• Geologists identified aplitic dikes cutting through the coarser granite formations.
• The aplitic composition of the rock sample indicated rapid cooling during crystallization.
• Aplitic pegmatites are often found at the margins of larger igneous intrusions.