plagioclases

plagioclase is a common mineral found in many igneous rocks.

geologists often study plagioclase to understand the history of volcanic activity.

plagioclase can vary in composition, leading to different types of rocks.

in hand samples, plagioclase is usually identified by its two cleavage directions.

plagioclase crystals can be found in both basalt and granite.

some plagioclase varieties are used in the production of ceramics.

plagioclase is often associated with other minerals like quartz and biotite.

the presence of plagioclase can indicate the cooling history of a magma body.

plagioclase feldspar is an important component of the earth's crust.

scientists use plagioclase to date geological formations.