This rad stuff is regular old hard-ass silica, tiny tetrahedra permanently locked up, but before that it’s a hot, high-pressure broth shooting through deep rock, hunting for cracks, fissures, and cavities where it can pool and cool and grow. Millions of years pass in a flash. Meanwhile, layers of the ancient dead lying all around, aka organic matter, liquify into natural petroleum, which also leaks in. Bubbles of water and petroleum get trapped while the lattice assembles itself and the rock does its squeeze box concertina thing for more millions of years. Veins of quartz fill up with little golden blobs of fossil fuel. Eventually people start digging and find it, most recently in Madagascar. There’s not much you can do with petroleum quartz other than string it on necklaces or set it at the center of a gold band and slip it onto your beloved’s finger. They say it’s known for centering and grounding energy, so it could solve that problem with your chakras. Oh, and as you can see, petroleum luminesces under blacklight, which is why it reminds people of fireflies.