Phonolite formation took place millions of years ago. There are a variety of Phonolite Uses and the Phonolite Reserves are found in many countries around the world. The rocks in the earth’s crust continuously undergo changes in their composition which leads to formation of other rocks. Each rock has a unique formation process. Formation of Phonolite is explained below:
Along with Phonolite Formation, also learn about Phonolite composition and transformation in the next section.