Robuta

https://aurora.auburn.edu/handle/11200/49855?show=full Maskelynite formation via solid-state transformation: Evidence of infrared and X-ray anisotropy https://gemheaven.org/article/maskelynite/ Maskelynite: The Impact Glass That Reveals Cosmic Collision History Discover maskelynite, a unique diaplectic glass formed by cosmic shock waves. Learn how this mineral "memory" of plagioclase feldspar helps scientists... the impactglassrevealscosmiccollision