Definitions

1. noun

A type of igneous rock that forms when magma rich in aluminum silicate minerals cools rapidly.

“The geologist studied the unique myrmekite formations in the ancient volcanic rock.”

2. noun

A type of intergrowth or intercrystalline structure of minerals, particularly feldspar and quartz, resembling an ant’s nest.

“The mineralogist examined the intricate myrmekite structure of the quartz crystal.”