I have been an fan of quartz for years because it has many beautiful forms but I never even gave a second thought as to its function in the geological process. It turns out it is not just a pretty face! Silicon dioxide lays dormant until a volcanic event blasts fumes of super hot gases. The crystals form quickly with the introduction of heat and pressure making a screen of sorts to vent and regulate the outburst. It moderates the flow of heat and pressure by forming a permeable barrier that vents the outburst through the interlaced “fingers” of quartz. Beauty and function combined! Nature sure comes up with wonderful ways to stay in balance!