poikilitic texture
Quick Summary
Poikilitic texture in geology describes a specific structural pattern found in igneous rocks. It occurs when a crystal of one mineral encloses numerous smaller, unoriented grains of another mineral. This creates a lustrous, mottled appearance within the larger crystal. This textural feature provides valuable insights into the conditions under which the rock formed, such as temperature, pressure, and crystallization rates. The study of rock textures, including poikilitic texture, is a key part of petrology, the scientific study of rocks.123
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