Mexican fluorite forms in hydrothermal veins within the limestone-rich geology of the Sierra Madre mountain ranges. As hot, mineral-laden fluids circulate through fractures in the bedrock, they deposit fluorine and calcium in slow-cooling cavities, allowing large, well-formed crystals to develop over geological time.
The mineral typically crystallises in cubic or octahedral habits, with crystal faces that exhibit high clarity due to the relatively stable formation environment.
Mexico's position along the Trans-Mexican Volcanic Belt and the intersection of major tectonic plates has created ideal conditions for fluorite mineralization, particularly in areas where limestone meets igneous intrusions. These geological processes have made Mexico one of the world's primary sources of high-quality fluorite specimens.