A common pain killer “over the counter medicine” the variations from this crystal forming ability is broad – always, in each image, a “tell” of what the basic substance is. (No! I’m not telling)   Its variation in structural and color rendering depends on an array of controlled factors involved in planning the creation of each variant.  A driving upward force – maybe what you feel when on the mend from a cold. I’m awaiting the Jetson’s to emerge in their “aircar” from behind one of these futuristic skyscrapers.